Question
Present ages of P and Q are in the ratio 5:8
respectively. If Q’s age, 14 years hence from now will be 4 times of P’s age, 4 years ago from now, then find the present age of Q.Solution
Let the present ages of P and Q be 5x and 8x years respectively. According to the question, => (8x + 14) = 4 ×  (5x – 4) => 8x + 14 = 20x – 16 => 12x = 30 => x = 2.5 Therefore, the present age of Q = 8x = 20 years
Determine the remainder when equation 4a3Â - 5a2Â + 2a + 1 is divided by (4a - 3) .Â
If -5 ≤ x ≤ 3 and -1 ≤ y ≤ 0, then the minimum value of 2y – 3x is:
Find x, given 5 (√5)x+6 = (√5)2x+7 :
The total number of even factors of 25 × 33 × 52 is:
Solve for x (x > 1):
log₃(x − 1) + log₃(x + 1) = 2
If x3 + y3 + z3 = 3(1 + xyz), P = y + z – x, Q = z + x – y and R = x + y – z, then what is the value of P...
Solve the equation:
3(x − 2) + 4(2x + 1) = 5(2x − 3) + 7
If a3 = 117 + b3 and a = 3 + b, then the value of a + b is:
Which one of the following is the equation for Velocity Time relation?
The value of the expression (1 + sec22° + cot68°)(1 – cosec22° + tan68°) is
Relevant for Exams:
