Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 8 Answered

The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls. What is the total strenght of the class?
Asked by jyotishman2001 | 18 Jan, 2019, 05:43: PM
Expert Answer
Let,
The number of boys = 7x and the number of girls =5x.
 
According to the condition,
 
7x = 5x + 8
2x = 8
x = 4
 
Therefore The number of boys = 7x = 7 × 4 = 28 and the number of girls =5x = 5 × 4 = 20.
 
Therefore total strength of the class = 28 + 20 = 48

Answered by Yasmeen Khan | 18 Jan, 2019, 06:31: PM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
CBSE 8 - Maths
×/2+1/2=4
Asked by shaiba.mpt.1 | 25 May, 2023, 08:19: PM
ANSWERED BY EXPERT
CBSE 8 - Maths
The sum of two consecutive even numbers is 42. Find the numbers.
Asked by kartikeydwivedi624 | 29 Dec, 2022, 10:36: AM
ANSWERED BY EXPERT
CBSE 8 - Maths
Sanjay is now half as old as his brother.In 6 more years he will be 3/5 as old his brother then. What is the present age of each boy
Asked by shivmuni002 | 18 Dec, 2022, 08:34: PM
ANSWERED BY EXPERT
CBSE 8 - Maths
a number is such that if 1/3 decreased by 3 is equal to 1/4 increased by 3. find the number
Asked by meera4165 | 17 Jul, 2022, 08:09: PM
ANSWERED BY EXPERT
CBSE 8 - Maths
A streamer goes downstream from point A to B in 9 hours. From B to A, upstream, it takes 10 hours. If the speed of the streamer is 1 km/h, what will be the speed in still water ? Also find the distance between the points A and B.
Asked by sherusunani | 24 May, 2022, 05:25: PM
ANSWERED BY EXPERT
CBSE 8 - Maths
Q no. 2 , 6 and 11
Asked by deepsikhab71.8cpsb | 10 Aug, 2021, 09:57: AM
ANSWERED BY EXPERT
CBSE 8 - Maths
Raju is 10 years older than Ram. The sum of their ages is 50. What are the ages of Raju and Ram
Asked by aryandhar2000 | 20 Jul, 2021, 12:13: PM
ANSWERED BY EXPERT
CBSE 8 - Maths
(2x²+3x²+1) by( x+1)
Asked by anildahiyam1972 | 27 Feb, 2021, 04:23: PM
ANSWERED BY EXPERT
CBSE 8 - Maths
a number consists of two digits whose number is 9 if 27 is subtracted from the number the digits interchange their places find the number
Asked by singhmanya0406 | 21 Jan, 2021, 09:57: AM
ANSWERED BY EXPERT
CBSE 8 - Maths
The perimeter of an isoceles triangle is 90m.If the length of the two equal sides is 3 / 4 of the length of unequal side , find the dimensions of the triangle.
Asked by pranjalnayak10 | 15 Jan, 2021, 11:15: PM
ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt