Question
At a birthday party, 160 children
attended. They were divided into boys and girls. A total of 1240 candies were distributed. If each boy received 7 candies and each girl received 12 candies, how many girls were present at the party?Solution
ATQ,
Let 'm' be the number of boys and 'f' be the number of girls. Given: m + f = 160 (total childrens). 7m + 12f = 1240 (Candies distributed). From m + f = 160, solve for m: m = 160 − f. Substitute m = 160 − f into 7m + 12f = 1240: 7(160 − f) + 12f = 1240. Simplifying gives: 1120 − 7f + 12f = 1240 ⇒ 5f = 120 ⇒ f = 24. Thus, there are 24 girls and 136 boys.
The average salary of A, B and C is Rs. 22000 while average salary of B, C and D is Rs. 25000. If the average salary of D be 2 times of that of ...
If all the digits of each number are added, the sum of which number will be the largest?
Select the number that can replace the question mark (?) in the following series. 17, 21, 30, 46, 71, ?
- This question is based on the five, three-digit numbers given below.
(Left) 847 538 628 482 497 (Right)
(Example- 847 – First digit = 8, ... 64 8 5
420 14 10
What the difference between the resultant of the first row and the second row?
...If each of the letters in the English alphabet is assigned odd numerical value beginning A = 1, B = 3 and so on, what will be the total value of the let...
Select the option in which the numbers are related in the same way as are the numbers of the following set.
(18, 6, 36)
How many 6s are there in the following number series which are preceded by 4 and followed by 8.
2 4 6 8 4 2 8 6 4 8 7 3 8 6 4 2 4 6 8 7 4 6 9 4
Read the directions carefully and answer the following question.
If in the number ‘ 9887532691 ’, the even digits are shifted to the next d...
Two bus tickets from city A to B and three tickets from city A to C cost ₹ 77 but three tickets from city A to B and two tickets from city A to C cost...
