Elitmus Exam Category

a bowl contain 1rs 50 ps and 25 ps coin.....total amount in bowl....
a)total coins in no-20
b)50ps and 25 ps coins are in ratio 7:3

Read Solution (Total 2)

14.25 Rs

50ps & 25ps coins are in the ratio 7:3 ,there quantity can be either 7 & 3 or 14 & 6
As there are also 1 Rs. coin, in total 20, so 50 ps & 25 ps coin will be 7 & 3 only and remaining 10 will be 1 Rs. coin.
So total amount= 50*7+ 25*3+ 100*10 =1425 ps= 14.25 Rs.
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Elitmus Other Question

If the square root of the product of three positive integers is equal to the largest of the three integers, what is the product of two smaller numbers ?
(1) the largest number of the three distinct numbers is 36
(2) the average(arithmetic mean) of three numbers is 17 a,b,c in gp and mno in ap
value of---(o-n)log a+(o-m)log b+(n-m)log c
1-(o-n)logabc
2--1
3--0