Putting x = 1, - 1 in the equation, p(1)3 + (1)2 - 2(1) - q = 0 p - q = 1 - I And p(-1)3 + (- 1)2 - 2 (-1) - q = 0 p + q = 3 - II on solving equ. I & II, we get, p = 2, q = 1
A’s age is 120% of what he was 5 years ago, But 40% of what it will be after 5 years. What is his present age?
When 16 years is subtracted from the present age of A and the obtained result is divided by 3, then the present age of his nephew is obtained. If the pr...
Present age of ‘A’ is 40% more than that of ‘B’. If 11 years hence from now, ‘B’ will be 5 years younger than ‘A’, then find the sum of ...
Today is Reena’s birthday. She has turned 34. Reena is twice as old as Deepa was when Reena was as old as Deepa is now. How old is Deepa now?
The sum of the present ages of two cousins is 54 years. Eleven years ago, the older one was thrice as old as the younger one. What is the present age of...
Amit age after 20 years will be 4 times his age 4 years back. What is the present age of Amit?
7 years ago, the ratio of the ages of Pia and Qasim was 9:7. The present age of Tom is 20 years more than one-seventh of Qasim’s present age. Find Tom...
Sum of the present ages of A, B, C and D is 68 years. After 4 years ratio of their ages is 5:4:3:2. What is C’s present age?
The ratio of the present ages of ‘A’ and ‘B’ is 5:6, respectively. Three years hence from now, the age of ‘B’ will be 21 years. If the avera...
A school has 8 teachers and 4 administrators. The average age of the teachers is 40 years, and the average age of the administrators is 55 years. After ...
