The denominator of a positive rational number is 4 more than its numerator. If the numerator is increased by 6 and the denominator is increased by 5, then the obtained number is 1.5 times the initial rational number. Find the sum of the numerator and the denominator of the initial rational number.
ATQ, Let, the numerator be a. So, rational number = a/(a + 4) ATQ, 
 Sum of the denominator and numerator = 2a + 4 = 40
If x = 8.15, y = 9.06 and z = –17.21, then the value of x³ + y³ + z³ – 3xyz is:
If (54√2 x³ +24√3 y³)÷(√18 x + √12 y) = Ax² + By² + Cxy, then what is the value of A² - (B²...
If {1/(y + 1) + 1/(y + 5)} = {1/(y + 2) + 1/(y + 4)}. Find the value of y
A boy who is standing in the middle of a field watches a bird flying in north direction at the angle of elevation of 60o and after 3 minutes ...
The value of:
 Â...
If x + y + z = 7, x² + y² + z² = 85 and x³ + y³+ z³ = 842, then the value of√3 xyz is:
...If [8(x + y)3 – 27(x – y)3] ÷ (5y – x) = Ax2 + Bxy + Cy2, then the value of (A2 - 2B + 3C)...
Out of total number of people in an office, 40% are males. Ratio of number of married to that of unmarried people in the office is 3:2 while ratio of nu...
