Railway RRB Mock Test - 8
86. The average of 6 numbers is 8. What should be added to it to make the
average 9?
(A) 15
(B) 16
(C) 17
(D) 18
87. A sum of money becomes double in 5 years at certain compound interest rate.
Then it will become 8 time in ______ years.
(A) 10
(B) 15
(C) 20
(D) 25
88. If 'x' men can complete a work in 8 days and (x + 4) men can complete the
work in 6 days then x = ?
(A) 10
(B) 6
(C) 12
(D) 24
89. Counting from 1 to 1000 the total numbers that are divisible by 3 and 5?
(A) 467
(B) 533
(C) 466
(D) 333
90. 70% of 280 is same as
(A) 35% of 140
(B) 7% of 28
(C) 40% of 490
(D) 40% of 160
91. If an article is sold at 10% gain, instead of 10% loss the merchant would have
got Rs. 25 more, the cost price is?
(A) Rs. 250
(B) Rs. 175
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