Simple Arithmatic

# Arithmetic & Mental Ability – 20 The smallest number which when divided by 12 and 16 leaves remainder 5 and 9 respectively, is:

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Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would have taken 6 hours more than A to fill the cistern. How much time will be taken by A to fill the cistern separately?
a) 1 hour
b) 6 hour
c) 8 hour
d) 11 hour

The banker's discount on a bill due 4 months hence at 15% is Rs. 420. The true discount is:
a) Rs. 400
b) Rs. 360
c) Rs. 480
d) Rs. 320

The smallest number which when divided by 12 and 16 leaves remainder 5 and 9 respectively, is:
a) 55
b) 41
c) 39
d) 29

If letters of the work KUBER are written in all possible orders and arranged as in a dictionary, then the rank of the word KUBER will be:
a) 67
b) 68
c) 65
d) 69

How many meaningful English words can be made with the letters ‘VLEI’ using each letter only once in each word?
a) five
b) one
c) three
d) four

A candidate scoring 25% in an examination fails by 60 marks while another candidate who scores 50% gets 40 marks more than the minimum required for pass. The minimum pass percentage
a) 30%
b) 40%
c) 35%
d) 38%

A jar contain 10 red marbles and 30 green ones. How many red marbles must be added to the jar so that 60% of the marbles will be red ?
a) 25
b) 30
c) 35
d) 40

If A:B = 4:9 and A:C= 2:3, then (A+B) : (A+C) is
a) 15:13
b) 10:13
c) 13:10
d) 13:15

Insert the correct mathematical sign in the following equation 13 3 2 1=15
a) x / +
b) / – x
c) + – +
d) / = X

How many 7’s are there in the following number sequence which are immediately preceeded by 5 but not immediately followed by 3? 375745739758778971576574375738
a) 2
b) 3
c) 4
d) 1

If in each following number, first and the last digit are interchanged which one of the following will be third highest number. 972, 682, 189, 298, 751
a) 972
b) 682
c) 298
d) 751

The present worth of Rs. 1404 due in two equal half-yearly installments at 8% per annum simple interest is:
a) Rs. 1325
b) Rs. 1300
c) Rs. 1300
d) Rs. 1500

The average age of eleven cricket players is 20 years. If the age of the coach is also included, the average age increases by 10%. The age of the coach is
a) 48 years
b) 44 years
c) 40 years
d) 36 years

A motor-boat can travel at 10 km/hour in still water. It travelled 91 km downstream in a river and then returned to the same place, taking altogether 20 hours. Find the rate of flow of river.
a) 3 km/hour
b) 4 km/hour
c) 2 km/hour
d) 5 km/hour

If the day after tomorrow is Saturday what day was three days before yesterday
a) Sunday
b) Monday
c) Thursday
d) Saturday

The cost price of 50 pens equal to the selling price of 40 pens. The profit perentage:
a) 25%
b) 30%
c) 10%
d) 15%

A, B and C jointly thought of engaging themselves in a business venture. It was agreed that A would invest Rs. 6500 for 6 months, B, Rs. 8400 for 5 months and C, Rs. 10,000 for 3 months. A wants to be the working member for which, he was to receive 5% of the profits. The profit earned was Rs. 7400. Calculate the share of B in the profit
a) Rs. 1900
b) Rs. 2660
c) Rs. 2800
d) Rs. 2840

The year next to 1990 will have the same calendar as that of the year 1990?
a) 1995
b) 1997
c) 1996
d) 1992

Find the odd pair out
a) 12-72
b) 24-48
c) 60-74
d) 84-96

Compleate the series. _aaba_bba_bba_ab aa_b
a) ababa
b) aabab
c) baaba
d) bbaba 