Question
Mr. Ghanshyam deposited certain amount in the Bank at
the end of each year. How much amount did he deposit at the end of each year at the rate of 15% simple Interest, so that he will get Rs. 980 at the end of 4th year?Solution
Total Interest = 45 + 30 + 15 + 0 = 90 Total Amount = 400 + 90 = 490 units 490 units = 980 1 unit = 2 100 units = 200 
If  x = a(b - c), y = b(c – a) and z = c(a - b) , find the value of (x/a)3 + (y/b)3 + (z/c)3?
If a + b + c = 12 and ab + bc + ca = 30, then find the value of a² + b² + c².
If [x + (1/x)] = 3, find [x2 + (1/x2)].
If 'x' is the lowest positive integer divisible by 8, 12 and 20, then find the second smallest positive integer which is divisible by all the three giv...
If x + y = 10 and xy = 21, find value of x³ + y³.
Solve the inequality for real x:
3 − 2x ≤ (x + 1)/2 < 5
The speed of a car is 25% more than that of a bike. Both of them start from a same point. After travelling for 4 hours, the speed of the bike is increas...
If (a2 + 1/a2) = 27, then find the value of (a3 - 1/a3).
