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no of doors open leave the auditorium . the process was repeated till the no of
doors is equal to1.find the total no of peoples enter the auditorium?
19)A batsman average was 15.at last innings he took 23 runs then his average
became
16.how much run he should take to make his average 18?
20)Find the number WXYZ divisible by 36?
i)let the digits be5,4,3,6 not in that order
ii)sum of last two digits is 9
iii) sum of middle two digits is 7
- if one is sufficient then ans asA || if two is sufficient then ans as
B||if all are necessary then ans as C|| if nothing is needed then ans as D
21)X and Y live in a North-South parallel street. X travels 10 km towards North to
reach the east-west street . Y travels 6 km towards south to reach the east west
street . X travels now 4km towards east and y travels 8km towards west and they
met each other. What is the distance between x and y?
22)The houses are numbered 1,2,3,... and reach the end of the street and
backtracks toward s the starting point. The house numbered 10 is opposite to 23.
there are even no of houses. Find the total no of houses.
23)A seller has a set of apples out of which he sells one half of it and half an
apple to his first customer.then he sells half of the remaining apples and a half
apple to his second customer.Then he sells half of the remaining apple and ˝
apple to his third customer and so on.This repeats upto 7th customer and no
more apples are remaining . Find the total no of apples he had.
24) A hollow cube of size 5cm is taken , with the thickness of 1cm . it is made of
smaller cubes of size 1cm . if the outer surface of the cube is painted how many
faces of the smaller cubes remain unpainted?
25)if a 36 cm thread is used to wrap a book , lengthwise twice and breadthwise
once, what is the size of the book?
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