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Find the next number in the series 12,21,,112,121,122---
A person meets a train at a railway station coming daily at a particular time . One day he is late by 25 minutes, and he meets the train 5 k.m. before the station. If his speed is 12 kmph, what is the speed of the train.
If a and b are positive integers and (a-b)/3.5 = 4/7, then the relation between a and b is
A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?
find the next term 0, 6, 24, 120, -
If 20 men take 15 days to to complete a job, in how many days can 25 men finish that work?
Four Members A, B, C, D are playing a game .A person losing a game should double the amount of others .B, C, D are losing in order after three games .The amount after 3 games are A&B having 40,D is having 16&C 80. Who started with small amount of money?
inept : clever :: languid :
Find the value of the 678 to the base 7.
There are two balls touching each other circumferentially. The radius of the big ball is 4 times the diameter of the small ball.The outer small ball rotates in anticlockwise direction circumferentially over the bigger one at the rate of 16 rev/sec. The bigger wheel also rotates anticlockwise at N rev/sec. what is 'N' for the horizontal line from the centre of small wheel always is horizontal.
f(X)= 2X-1 + f(X-1) if X is not equal to zeroandiff(X=0)=0, Value of f(f(2))
In a class there are 45 pupil, out of them 12 are in debate only and 22 in singing only. Then how many in both?
A building with hight D ft shadow upto G A neighbour building with what height shadow C ft is?
Find the next series number 0, 6, 24, 120, 210, ---, ----
A son and father goes for boating in river upstream . After rowing for 1 mile son notices the hat of his fathe falling in the river. After 5 min. he tells his father that his hat has fallen. So they turn around and are able to pick the hat at the point from where they began boating after 5 min. Tell the speed of river.