Question
Rihan spends 40% of his salary, which is Rs. 1200 more
than the amount he would spend if he spent 30% of his salary. What is the total salary of Rihan?Solution
Let the salary of Rihan be Rs. x According to the question, 0.4x – 0.3x = Rs. 1200 Or, 0.1x = Rs. 1200 Or, x = Rs. 12000
168, 164, 155, 139, ?, 78
1221,     1100,     1000,     919,       ?
...196, 196, 203, 229, 292, ?
Find the missing number in the given number series.
1, 2, 3, 6, 11, 20, ?What will come in place of the question mark (?) in the following series?
10, 11, 15, 31, 95, ?
120, 120, ?, 360, 900, 2700
290, 571, 900, ?, 1485, 1890
- What will come in place of the question mark (?) in the following series?
-5, -2, ?, 10, 19, 30 654, 647, 633, 612, 584, ?
10Â Â Â 11Â Â Â Â 12Â Â Â Â 20Â Â Â Â 24Â Â Â Â ?