4 boys and three girls are to be seated in a row in such a way that no two boys sit adjacent to each other. In how many different ways can it be done?
144
36.15+71.58+6.33+2.71=?
116.77
216 × 5 + 102 × 4=?
1488
9 11 15 ? 39 71
23
3 19 97 391 ? 2359
1177
848 422 208 100 45 ?
16.5
What would be the compound interest accrued on an amount of Rs. 7.850 at the rate of 14 percent per annum in two years?
Rs. 2351.86
In how many different ways cant he letters of the word 'RUDE' be arranged?
24
The ages of Bhakti and Neil are in the ratio of 8:7 respectively. After 6 years the ratio of there ages will be 19:17. What is the difference in their ages?