ATQ, Let the cost price of the item be Rs. '5a' So, selling price of the item = 5a × (7/5) = Rs. '7a' ATQ; 7a - 5a = 38.60 Or, 2a = 38.60 So, a = 19.30 So, selling price of the article = 19.30 × 7 = Rs.135.10
If [8(x + y)3 – 27(x – y)3] ÷ (5y – x) = Ax2 + Bxy + Cy2, then the value of (A2 - 2B + 3C)...
The certain sum amounts to Rs11313.5 in 2(1/2) years at 12% p.a., interest compounded 10 months. The sum (in Rs) is:
If a +`1/b` = 1 and b +`1/c` =1 , then the value of c +`1/a` is
If x, y and z are real numbers such that (x-5)2+(y-7)2+(z-9)2= 0 then (x+y+z) is equal to
If ( m+n ) : √ (mn) = 4, m>n , Then find the value of m : n ?
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