Math Questions for SSC CHSL and RRB NTPC EXAM

Q5. If a, b, c are non-zero, a + 1/b = 1 and b + 1/c= 1, then the value of abc is:
(a) -1
(b) 3
(c) -3
(d) 1

Q6. A farmer divides his herd of cows among his four sons so that first son gets one-half of the herd, the second son one-fourth, the third son one-fifth and the fourth son 7 cows. The total number of cows in the herd is:
(a) 100
(b) 120
(c) 140
(d) 160

Q8. A person covers 18 km at 6 km/hr, 16 km at 8 km/hr and 30 km at 6 km/hr. Then find the average speed in covering the whole distance.
(a) 6.2 km/hr
(b) 6.4 km/hr
(c) 7 km/hr
(d) 7.2 km/hr

Q9. Average of ten numbers is 7. If every number is multiplied by 12, what will be the average of new numbers?
(a) 7
(b) 9
(c) 82
(d) 84

Q10. By selling 60 meter of cloth there is a loss of 15 meter of SP. Find loss %
(a) 16.6%
(b) 15%
(c) 20%
(d) 24%

Q11. The sum of the ages of a father and son is 45 years. Five years ago, the product of their ages was four times the father’s age at that time. The present ages of the father is :
(a) 36
(b) 27
(c) 40
(d) 35

Q12. What is the minimum value of @ so that the number 451@603 is exactly divisible by 9? 
(a) 2
(b) 5
(c) 7
(d) 8 

Q13. When the number is divided by 84 the remainder is 40. What will be the remainder when this number is divided by 14? 
(a) 0
(b) 8
(c) 12
(d) None of these 

Q14. Find the least number which when divided by 12, 15, 20 & 35 leaves a remainder 6 in each case? 
(a) 216
(b) 426
(c) 846
(d) None of these 

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