operations on numbers (6.papers)

hcf and lcm (5.papers)

averages (8.papers)

problems on ages (9.papers)

percentage (4.papers)

profit and loss (4.papers)

ratio and proportion (5.papers)

chain rule (5.papers)

time and work (4.papers)

pipes and cisterns (5.papers)

time and distance (5.papers)

problems on trains (8.papers)

boats and streams (7.papers)

partnership (6.papers)

simple interest (4.papers)

compound interest (2.papers)

permutation and combination (3.papers)

clock (2.papers)

calendar (3.papers)

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4

The ratio of the two numbers is 13 : 17 and their H.C.F. is 23, find the numbers.

299, 391

259, 361

349, 421

319, 371

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6

Find the largest number which divides 59, 145 and 274 to leave the same remainder in each case.

37

47

29

43

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7

The traffic lights at three different road crossings change after every 22 sec., 66 sec and 120 sec respectively. If they all change simultaneously at 9:10:00 hours, then at what time will they again change simultaneously?

9:32:00 hrs.

9:25:00 hrs.

9:38:00 hrs.

9:40:00 hrs.

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14

Three numbers are in the ratio 2:5:7 and their H.C.F. is 13. The numbers are:

26, 65, 91

10,20,30

16,26,30

8,14,25

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