Question
Rs. 7000 is invested in scheme ‘A’ for 2 years and
Rs. 5000 is invested in scheme ‘B’ for 2 years. Scheme ‘A’ offers simple interest of 15% p.a. If the interest received from both the schemes are equal, then find the rate of simple interest (p.a.) offered by scheme ‘B’.Solution
Interest received from scheme ‘A’ = 7000 × 15 × 2 ÷ 100 = Rs. 2100 Let the rate of simple interest offered by scheme ‘B’ = ‘k%’ p.a. ATQ; 5000 × 2 × k ÷ 100 = 2100 Or, 100k = 2100 Or, k = (2100/100) = 21 So, rate of simple interest offered by scheme ‘B’ = 21% per annum.
188 178 158 ? 88 38
What will come in place of the question mark (?) in the following series?
102, 111, 136, 185, 266, ?
1140, ?, 1130, 1160, 1120, 1170
864, 432, 144, ? , 7.2, 1.2
What value should come in the place of (?) in the following number series?
251, 272, 296, ?, 353, 3867 29 61 ? 211 349
...48 49 45 54 ? 63 27
...10, 10, 15, 30, 75, ?
What will come in place of the question mark (?) in the following series?
100, 729, 64, 343, 36, ?
3.6 × 1.5 + 8.4 × 2.5 – 9.2 × 3.5 = ? – 9.2 × 4.4
