Elitmus Exam Category

if average of 7 no is 7. and average of first 5 no is 6. and average of last 5 no is 7.how to calculate of last digit value(means 7 no)?

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Elitmus Other Question

how many numbers between 100 and 500 are there whose sum of two digits will be equal to third? A teacher gives three bags to abhishek, amitabh and aiswarya.Each bag contains six balls. abhishek has 2 red balls, amitabh has 5 red balls.When a ball is drawn by them the probability of not being same colour is 5/6.the number of red balls in aiswarya bag is ?
a)2 b)3 c)4 d)5