Question
A sum of money becomes ₹7800 after 3 years and ₹8500
after 4 years at simple interest. What is the principal amount?Solution
Interest for 1 year = ₹8500 − ₹7800 = ₹700. For 3 years, the interest = 3 × ₹700 = ₹2,100. Principal = ₹7800 − ₹2,100 = ₹5,700. Thus, the correct answer is ₹5,700 . Ans. c
- Find the wrong number in the given number series.
25, 36, 29, 40, 33, 50 154 165 143 175 132 187
...5000, 4500, 3600, 2480, 1512, 756
Find the wrong number in the given number series,
125, 150, 250, 475, 875, 1500
- Find the wrong number in the given number series.
5, 8, 12, 19, 27, 39 768 2304 288 864 106 324
Find the wrong number in the given number series.
5, 6, 14, 45, 188, 925
120, 240, 80, 320, 60, 384
21 32 54 86 131 186
...7 12 33 126 635