Vedic Multiplication by 11
Step 1.
Assume that there are two invisible 0 (zeroes), one in front and one behind the number to be multiplied with 11
say if the number is234, assume it to be 0 2 3 4 0
Step 2.
Start from the right, add the two adjacent digits and keep on moving left
02340
Add the last zero to the digit in the ones column (4), and write the answer below the ones column. Then add 4 with digit on the left i.e. 3. Next add 3 with 2. Next 2 with 0.
0+4 = 4
4+3 = 7
3+2 = 5
2+0 = 2
So answer is 2574
Similarly,
36 x 11 = 0+3 | 3+6 | 6+0 = 396
74 x 11 =0+ 7 | 7+4 | 4+0 = 7 |11 | 4 = 814 (1 of 11 is carried over and added to next digit, so 7+1 = 8 )
6349 x 11 = (0+6) | (6+3) | (3+4) | (4+9) | 9+0 = 69839
This method works for all the number, no matter how long or short, times 11. Just try it yourself and get amazed at the simplicity of the concept.
*Riddle: Mystery of Missing Rupee:
Three men walk into a hotel and rent a room for Rs. 30. They contribute towards the room rent equally. So each one of them paid Rs.10.The hotel manager after sometime realized the room rent should have been only Rs. 25 rupees. So he sent the dishonest bellboy and told him to give Rs. 5 back to the men.The bellboy cheated and gave each one of them Re. 1 back.Now you know Rs. 27 (10-1 = Rs. 9 each) is paid by the 3 men and Rs. 2 is with the bell boy. That makes it Rs. 29 (27+2), so where is the remaining Re.1
1) 2years ago the ratio of the ages of S&K was 5:7 respectively. 2 years hence ages will be 7:9 respectively. what is the present age of K?
1) 16 2) 145 3) 12 4) Can't be determined.
2) The product of two consecutive even number is 288 what is the product of the next two consecutive even numbers.
1) 7224 2) 7740 3) 7920 4) None of these.
3) The sum of the HCF and LCM of two number is 680 and the LCM is 84 times the HCF. if one of the number is 56, the other is ?
1) 84 2) 12 3) 8 4) 96
If
5+3+2=151012
9+2+4=183662
8+6+3=482466
5+4+5=202504
then
7+2+5=??????
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*If 12 girls can earn Rs.2,400 in 5 days, then how many girls can earn
Rs.4,200 in 21 days?
i) 105 girls
ii) 101 girls
iii) 12 girls
iv) 5 girls
*The least perfect square number which is divisible by 3,4,5,6 and 8 is
i) 700
ii) 1100
iii) 3600
iv) 1500
*A woman has Rs.480 in the denomination of one-rupee notes, five-rupee
notes and ten-rupee notes. The number of notes are equal. What is the total
number of notes?
i) 50
ii) 70
iii) 90
iv) 60
*In an organisation, 40% of the employees are matriculates, 50% of the
remaining are graduates and remaining 180 are post-graduates. How many
employees are graduates?
i) 360
ii) 120
iii) 180
iv) 240
*By selling an article for Rs.240, a woman incurs a loss of 10%. At what
price should she sell it so as to make a profit of 20%?
i) 320
ii) 288
iii) 262
iv) 310
*The cost price of two dozen bananas is Rs.32. After selling 18 bananas at the
rate of Rs.12 per dozen, the shopkeeper reduced the rate as Rs.4 per dozen.
The percentage loss is
i) 21.2%
ii) 33.4%
iii) 37.5%
iv) 35.5%
*If the cost price of 12 articles is equal to the selling price of 10 articles, then
the profit percent is
i) 18 2/3%
ii) 20%
iii) 24%
iv) 25%
*The length of the longest rod that can be placed in a room 12m x 9m x 8m is
i) 26 m
ii) 15 m
iii) 17 m
iv) 13 m
*The number, whose square is equal to the difference of the squares of 75.15
and 60.12 is
i) 43.09
ii) 45.09
iii) 46.09
iv) 47.09
*The average of 20 numbers is 12. The average of the first 12 is 11 and that
of next 7 is 10. The last number is
i) 39
ii) 46
iii) 50
iv) 38
*How many numbers between 200 and 600 are divisible by 4, 5 and 6?
i) 4 ii) 6 iii) 5 iv) 7
*Supply the missing figure:
5/10 * 8/7 * 100/50 * 35/40 * ?/16 = 1/8
i) 4 ii) 6 iii) 2 iv) 16
*The area of a square is 225 square metres. Then the perimeter of the square
is
i) 90 ii) 15 iii) 55 iv) 60
*Simplify
0.7*0.7*0.7 - 0.2*0.2*0.2/0.7*0.7+0.2*0.2+0.2*0.7
i) 0.5 ii) 0.3 iii) 0.2 iv)0.7
*How much is 1/2 of x/2?
i) 1/x ii) x iii) x/4 iv) 1/4
*What is the radius of circle of area 616cm square?
i) 10cm ii) 14cm iii) 16cm iv) none of these
*The square root of 0.0676*0.04 is
i) 52 ii) 0.52 iii) o.052 iv) 5.2
*25m/sec is equivalent to a speed of
i) 75 km/hr ii) 100 km/hr iii) 85 km/hr iv) 90 km/hr
*What is the average of the first 5 odd natural numbers?
i) 10 ii) 15 iii) 5 iv) 13
*Average of 6 numbers is 8; what number should be added to it, to make sure
the average is 9?
i) 14 ii) 15 iii) 19 iv) 18
*1.542*2408.69 + 1134.632=?
i) 4488 ii) 4848 iii) 4858 iv) 4846
*9569-6548-1024=?
i) 1997 ii) 2076 iii) 2283 iv) 4004
*Which number is 40% less than 90?
i) 60 ii) 54 iii) 50 iv) 36
*56% of 75 +9% of 125=?
i)63.25 ii) 55.25 iii) 51.25 iv) 53.25
*1+1/1+4/3=?
i) 1.428 ii) 14.28 iii) 14.9 iv) 142.8
*What must be added to make 2203 a perfect square?
i) 3 ii) 6 iii) 4 iv) 1
*The least perfect square, which is divisible by each of 21, 36 and 66 is
i) 231444 ii) 214344 iii) 214434 iv) 213444
*Simplify: 31/10*3/10+7/5/20 = ?
i) 10 ii) 1 iii) 1/10 iv) 2
*Mean proportional between 7 and 28 is
i) 17 ii) 12 iii) 14 iv) 16
*3/ [(8-5) / {(4-2) / (2+8/13)}] = ?
i) 23/17 ii) 21 iii) 17/13 iv) 13/17
*Convert 0.05 into percentage
i) 1/2% ii) 0.05% iii) 5% iv) 50%
*What percent of 5/8 is 8/5?
i) 8 ii) 128 iii) 5 iv) 256
*3/4th of a certain number is 60. Half of that number is
i) 40 ii) 30 iii) 80 iv) 20
*A number when divided by 3, is reduced by 20. The number is
i) 30 ii) 60 iii) 33 iv) 21
*If a:b = 2:3 and b:c = 3:4. Find a:b:c and a:c
i) 2:1 ii) 1:3 iii) 1:2 iv) 3:1
*The difference of two numbers is 11 and 1/3 of their sum is 7. Then one
number 1s
i) 7 ii) 10 iii) 11 iv) 16
*Find the square root of: 0.000943
i) 0.03037 ii) 0.30 iii) 0.308 iv) 0.3030708
*Three numbers are in the ratio 3:4:5 and their average is 24. The largest
number is
i) 45 ii) 15 iii) 30 iv) 10
*Find the area of a triangle whose sides measures 15cm, 16cm, 17cm.
i) 99.98 ii) 109.98 iii) 110 iv) 111
*Find the value of: 12*12+2*12*15+15*15
i) 745 ii) 987 iii) 729 iv) 725
*40 grams could be written in kilograms as
i) 0.41 ii) 40 iii) 0.004 iv) 0.04
*When 75% of a number is added to 75, then the result is the number again.
The number is given by
i) 250 ii) 300 iii) 250 iv) 175
*Supply the missing figure:
5/10 * 8/7 * 100/50 * 35/40 * ?/16 = 1/8
i) 16 ii) 4 iii) 2 iv) 8
*0.6+0.66+0.066+6.606=?
i) 7.388 ii) 6.666 iii) 7.392 iv) 7.932
*0.001/? = 0.01
i) 0.1 ii) 10 iii) 0.01 iv) 0.001
*42060/15+5=?
i) 289 ii) 2809 iii) 2103 iv) 2804
*48-12*3+9 = ?+3+9/3
i) 1/3 ii) 1 iii) 3 1/2 iv) 3
*Compute 35*0.0015/0.25*0.07
i) 3 ii) 30 iii) 0.3 iv) 4
*?-1046-398-69=999
i) 2525 ii) 2512 iii) 2425 iv) 2121
*What decimal of an hour is a second?
i) 0.0256 ii) 0.000126 iii) 0.0025 iv) 0.00027
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1 . A boy buys oranges at 11 for Rs 16 and sells them at 10 for Rs 20. What does he gain or lose percentage ?
(1) 22% (2) 21% (3) 26% (4) 66% (5) None of these
2 . A dishonest dealer professes to sell his goods at cost price, but he uses a weight of 950 gm for the kg weight. Find his gain per cent ?
(1) 25% (2) 63% (3) 5.25% (4) 5.26% (5) None of these
3 . A sells a goods to B at a profit of 20% and B sells it to C at a profit of 25%. If C pays Rs 225 for it, what was the cost price for A ?
(1) Rs500 (2) Rs560 (3) Rs150 (4) Rs699 (5) None of these
4 . By selling a horse for Rs 570,a tradesman would lose 5%. At what price he sell it to gain 5% ?
(1) Rs630 (2) Rs640 (3) Rs636 (4) Rs563 (5) None of these
5 . I sold a book at a profit of 12%. Had I sold it for Rs18 more, 18% would have been gained. Find the cost price ?
(1) Rs325 (2) Rs300 (3) Rs456 (4) Rs563 (5) None of these