If a * b = 2a - 4b + 2ab, then 2*3 + 3*2 = ?
a * b = 2a - 4b + 2ab
Hence,
2*3 = 2$(2)$ - 4$(3)$ + 2$\left(2 \times 3\right)$ = 4 - 12 + 12 = 4
3*2 = 2$(3)$ - 4$(2)$ + 2$\left(3 \times 2\right)$ = 6 - 8 + 12 = 10
∵ 2*3 + 3*2 = 4 + 10 = 14
|
Eight people are planning to share equally the cost of a rental car. If one person withdraws from the arrangement and the others share equally the entire cost of the car, then the share of each of the remaining persons increased by: |
Answer |
|
An organization decided to raise Rs. 6 lakh by collecting equal contribution from each of its employees. If each of them had contributed Rs. 60 extra, the contribution would have been Rs. 6.24 lakh. How many employees are there in that organization? |
Answer |
|
A man has Rs. 312 in the denominations of one-rupee notes, five-rupee notes and twenty-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has ? |
Answer |
|
In a garden, there are 10 rows and 12 columns of mango trees. The distance between the two trees is 2 metres and a distance of one metre is left from all sides of the boundary of the garden. What is the length of the garden? |
Answer |
|
If the number of boys in a class are 8 times the number of girls, which value can never be the total number of students? |
Answer |
|
Free notebooks were distributed equally among children of a class. The number of notebooks each child got was one-eighth of the number of children. Had the number of children been half, each child would have got 16 notebooks. Total how many notebooks were distributed ? |
Answer |
|
A room has equal number of men and women. Eight women left the room, leaving twice as many men as women in the room . What was the total number of men and women present in the room initially? |
Answer |
|
4 + 3 × 9 = ? |
Answer |
|
3 – (5 – 6 ÷ 3) |
Answer |
|
– 25 + 14 ÷ (5 – 3) |
Answer |