Question
Find the rate of interest if amount after 2 years on
simple interest on a capital of Rs 1000 is Rs 1200.Solution
ATQ, we can say that SI = (P × R × T)/100 SI = (1000 × R × 2)/100 SI = 20R A = SI + P 1200 = 20R + 1000 200 = 20R R = 10% ∴ The rate of interest is 10%.
- 16, 36, 128, 768, 6144, 61440 
- 1286, 1061, 865, 696, 560, 431, 331 
- 9 20 63 255 1285 7716 ...
- 16,22,30,45,52,66 
- 48, 73, 109, 154, 222, 303 
- 3 5 9 17 32 65 ...
- Find the wrong number in the given number series. 
 
 25, 36, 50, 68, 92, 120
- Find the wrong number in given number series. - 6490, 6377, 6294, 6211, 6138 
- Find the wrong number in the given number series, - 121, 130, 116, 139, 103, 148 
- Find the wrong number in the given number series. 
 
 7, 9, 16, 12, 25, 15, 36