CSS General Abilities Topic 1 Basic Arithmetic With Answers

CSS General Abilities Topic 1 Basic Arithmetic

Sr. # Questions Answers Choice
1 The L.C.M. of 148 and 185 is: 680 740 3700 2960
2 The L.C.M. of 26, 56, 104 and 182 is 546 1274 728 784
3 The H.C.F. of 3556 and 3444 is : 25 26 28 23
4 The H.C.F. of 2923 and 3239 is: 37 47 73 79
5 The H.C.F. of 1095 and 1168 is: 37 73 43 83
6 The H.C.F. of 24 x 32 x 53 x 7, 23 x 33 x 52 x 72 and 3 x 5 x 7 x 11 is: 105 27720 1155 2310
7 The H.C.F. of 22 x 33 x 55, 23 x 23 x 52 x 7 and 24 x 34 x 5 x 72 x 11 is 2<sup>2</sup> x 3<sup>2</sup> x 5 x 7 x 11 2<sup>4</sup> x 3<sup>4</sup> x 5<sup>5</sup> 2<sup>4</sup> x 3<sup>4</sup> x 5<sup>5</sup> x 7 x 11 2<sup>2</sup> x 3<sup>2</sup> x 5
8 Find the greatest number of five digits which when divided by 8,9 and 10 leaves 3 as remainder in each case. 99996 99723 99983 None of these
9 Find the greatest number of four digits which must be added to 5231 so that the final number becomes exactly divisible by 12, 15, 27, 32 and 40. 7929 7829 9729 7729
10 Find the L.C.M. of 24, 28, 30 and 35. 9225 840 850 9260
11 The H.C.F. of two numbers is 11 and their L.C.M. is 693. If one of the numbers is 77, find the other. 909 119 66 99 &nbsp;
12 Find the least number which when decreased by 11 is divisible by 14, 15, 21, 32 and 60. 4371 3271 3371 3360
13 What is the smallest number which when increased by 3 is divisible by 16, 24, 30 and 32 ? 480 475 472 477
14 Find the greatest number of five digits which when divided by 12, 15, 21, 25 and 28 leaves 5, 8, 14, 18 and 21 as remainder, respectively. 98696 98700 97693 98693
15 Find the least number of six digits which is exactly divisible by 15, 21 and 28: 100480 100270 100380 100340
16 The largest natural number which exactly divides the product of any four consecutive natural numbers, is 6 12 24 120
17 The H.C.F. and L.C.M. of two numbers are 44 and 264, respectively. If the first number is divided by 2, the quotient is 44. The other number is: 33 66 132 264
18 The L.C.m. and G.C.D. of two numbers are 1530 and 51, respectively. Find how many such pairs are possible ? 2 3 4 only one
19 Five bells begin to toll together and toll at intervals of 36, 45, 72, 81 and 108 seconds. After what interval of time will they keep on tolling together ? 3240 seconds 3080 seconds 3140 seconds 3200 seconds
20 Three men start together to travel the same way around a circular track of 11 kilometres in circumference. Their speeds are 4, 5 1/2 and 8 kilometres per hour, respectively. When will they meet at the starting point? 11 hours 12 hours 23 hours 22 hours
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