If A varies directly as B and inversely as C and A = 10, B = 5 and C = 7, what is the value of A when B = 8 and C = 7?
If P: Q = 4: 5 and Q: R = 5: 7, then find the value of (P + Q): (Q + R): (R + P).
Monthly savings of ‘Q’ is 20% more than that of ‘P’ and is 44% less than monthly income of ‘P’. Monthly expenditure of ‘Q’ is Rs. 4760 a...
The ratio of two numbers is 4:5. If each number is decreased by 4, the ratio becomes 7:9. Find the smaller numbers.
If a/b =c/d =e/f =2/3 Then (2a2-3c2+4e2)/ (2b2-3d2+4f2) =?
If x+3, x-2, 6 and 5 are in proportion then find the mean proportional to x and 9x2.
- If ‘A’, ‘B’ and ‘C’ are in proportion in the given order while ‘A’ = 16 and ‘B’ = 32, then find the value of ‘C’.
A bag contains Re 1 and 50 paise coins in the ratio 2 : 3. While the ratio of 50 paise and 25 paise is 4:5. If the total value of these coins is Rs 177....
In a class, the ratio of number of boys to number of girls is 9:4. If 5 boys joined the class and 1 girl left the class, then the ratio becomes 7:3. Fin...
In a factory, the ratio of number of male to female employees are 7: 18. If 27 male employees and 12 female employees left the factory, then the ratio b...
