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Browse complete papersTwo children A and B are playing a game. A can draw a picture in 30 minutes and B can erase it in 40 minutes. If A starts drawing, and if the drawing sheet is passed on to these two alternately for every one minute, then the time (in minutes) required to complete a picture for the first time is
240
232
1200
233
Correct answer
240
18 men and 12 women can complete a work in 18 days. A women takes twice as much time as a man to complete that work. Then the number of days required for 8 men to complete the same work is
48
54
45
52
Correct answer
48
A boy, a man and a woman can do a work independently in 72, 12 and 48 days respectively. The number of women required to assist 6 boys and a man to complete that work in 2 days is
12
16
18
8
Correct answer
12
64 men working 8 hours a day plan to complete a piece of work in 9 days. After 5 days, they were able to complete only 40% of the work. The number of hours they should work per day so as to complete the remaining work in 4 more days is
10
12
14
15
Correct answer
10
Two friends A and B working together can complete a piece of work in 16 days. A alone can do the same work in 32 days. If A and B work on alternate days, starting with B, the time (days) in which the work can be completed is
64
16
72
32
Correct answer
64
The LCM of 96,144 and N is 576. If their HCF is 48, then a possible value of N is
64
96
244
192
Correct answer
64
The number of zeros at the end of the product 1003 × 1001 × 999 × ... × 123 is
225
213
0
1
Correct answer
225
If A = 2352 5411 3152 ; B = 2352 5410 3153, C = 2350 5412 3149 , and D = 2353 5409 3150 then the descending order of A, B, C, D is
A, B, C, D
D, C, B, A
A, D, C, B
A, C, B, D
Correct answer
A, B, C, D
The smallest 5 digit number which when divided by 7, 11 and 21 leaves the remainder 3 in each case is
12,234
10,167
11,580
10,233
Correct answer
12,234
If 937x8y7 is exactly divisible by 11, then the maximum value of x + y is:
6
28
11
17
Correct answer
6