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
612, 487,?, 396, 388, 387
Find the missing number in the given number series.
1, 2, 6, 24, 120, ?What will come in place of the question mark (?) in the following series?
36, 85, ?, 230, 330, 451
Find the missing term in the series:
2, 5, 11, 23, 47, ?
What will come in place of the question mark (?) in the following series?
400, 841, 1202, ?, 1716, 1885
44 45 41 50 ? 59 23
...221, 100, 0, -81, ?
...900 90 18 ? 2.16 1.08
16, 20, 11, 27, ?, 38
37, 57, 82, ?, 147, 187