The sum of four natural numbers a1, a2, a3 and a4 is 210.
What is the minimum possible LCM of these 4 mentioned
natural numbers?
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Reversing the digits of father's age we get son's age. One year ago father was twice in age of that of his son? find their current ages?
The ratio of the number of boys and girls in a school is 3:2 Out of these 10% the boys and 25% of girls are scholarship holders. % of students who are not scholarship holders.?
There are 9 balls of equal size and same weight (they look similar) except 1. How may weighs required to find the dissimilar ball using a weighing balance?
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Olympic race : 4 contestants : Alan,charlie, Darren ,Brain. There are two races and average is taken to decide the winner.one person comes at the same position in both the race. Charlie always come before darren. Brian comes first once. Alan comes third at least once. Find the positions. Alan never comes last. Charlie & darren comes 2nd at least once.
In simple interest what sum amounts of Rs.1120/- in 4 years and Rs.1200/- in 5 years.
If two pencils cost 8 cents, then how much do 5 pencils cost?
Why we use Caffine in HPLC calibration?
A mother is 30 years older than her daughter however she will be only thrice as old as the daughter after 5 years. What is mother’s present age ?
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analogy: cell: tissue::atom:?
Find the correct meaning of the following phrase: To be in the air
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Number of digits with a 2 in them between 100 and 400?
A pipe can fill a tank in 30 min B can fill in 28 min then if 3/4 th of tank can be filled by B pipe and after wards bothare opened then how much time is required by both the pipes to fill the tank completely. note: the values of A and B may slitely vary be ware.