If s and r are integers, `8ltrlt40`, and `(s)/(r)=(4)/(7)`, how many possible values are there for s?

How many nods are there in 4s and 3s ?

A = [[p,q],[r,s]] where p, q, r and s are positive integers. If A is symmetric matrix, |A|=20 and p = q, then find how many values are possible for s.

If (1)/(3)r+(1)/(4)s=(5)/(6) , what is the value of 4r+3s?

If r and s are two positive numbers and r is 25% greater than s, what is the value of the ratio r/s?

How many products are formed by sum of P,Q,R,S ?

If (r)/(3)=6 , what is the value of (4s)/(r) ?

(8r+7)/(4s)=11 If (1)/(2)r+1=s+1 , what is the value of r+s for the equation above?

The value of a flat worth Rs. 500000 is depreciating, at the rate of 10% p.a. In how many years will it' value be reduced to Rs. 364500? 3\ y e a r s b. 4\ y e a r s c. 5\ y e a r s d. 6\ y e a r s