The greatest possible length which can be used to measure exactly the lengths 7 m, 3m, 85 cm, 12 m 95 cm is:
- (A) 15 cm
- (B) 25cm
- (C) 35 cm
- (D) 45cm
Three numbers which are coprime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is:
- (A) 75
- (B) 81
- (C) 85
- (D) 89
Find the highest common factor of 36 and 84:
- (A) 4
- (B) 12
- (C) 18
- (D) 6
Which of the following fractions is the largest?
- (A) 7/8
- (B) 13/16
- (C) 31/40
- (D) 63/80
The least number which, when divided by 12, 15, 20, and 54, leaves a remainder of 8 in each case is:
- (A) 504
- (B) 536
- (C) 544
- (D) 548
The greatest number which, on dividing 1657 and 2037, leaves remainders 6 and 5 respectively, is:
- (A) 123
- (B) 127
- (C) 235
- (D) 305
Which of the following has the most number of divisors?
- (A) 99
- (B) 101
- (C) 176
- (D) 182
The L.C.M. of two numbers is 48. The numbers are in the ratio 2:3. Then the sum of the numbers is:
- (A) 32
- (B) 40
- (C) 28
- (D) 64
The H.C.F. of 9/10, 12/25, 18/35 and 21/40 is:
- (a) 3/5
- (b) 252/5
- (c) 3/1400
- (d) 63/700
If the sum of two numbers is 55 and the H.C.F. and L.C.M. of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to:
- (a) 55/601
- (b) 601/55
- (c) 11/120
- (d) 120/11