a is greater than b by 2 and b is greater than c by 10 . If a+ b+ c =130 , then (b+c) -a =?

a is greater than b by 2 and b is greater than c by 10 . If a+ b+ c =130 , then (b+c) -a =? Correct Answer 34

Let, c = x ∴b = x + 10 and  a = x + 12 Now,a + b + c = 130 = > x + 12 + x + 10 + x = 130 = > 3x = 130 - 22 = 108 ∴x = (108/3) = 36 i.e, c = 36 ∴ b = 46 and a = 48 ∴(b + c) - a = (46 + 36) - 48 = 34 Ans. 
Bissoy MCQ

Related Questions

a is greater than b ny 2 and b is greater than c by 10, If (a+b+c) =130, then b+c-a=?
2NH3+CO2→180∘C,130 atmX→180∘C,130 atmY.এখানে Y যৌগটি হলো-
The product P of two prime numbers is between 9 and 55. If one of the prime numbers is greater than 2 but less than 6 and the other is greater than 13 but less than 25, then P =
A number is greater than 3 but less than 8. Also, it is greater than 6 but less than 10. The number is -
The average of the three numbers x , y and z is 45 , x is greater than the average of y and z by 9. The average of y and z is greater than y by 2 .Then the difference of x and z is:
If x, y, z are three positive integers such that x is greater then y and y is greater than z, then which of the following is definitely true ?
If 4x is 9 greater than the sum of x and 3y, then x is how much greater than y?
If 4x is 9 greater than the sum of x and 3y then x is how much greater than y?
L is older than M and taller than N. O is younger than P, older than N and shorter than Q. R is older than S, younger than N, shorter than S and taller than Q. S is older than L, M, O, P, Q, R and S is necessarily false?
Aida divides a number greater than 100 by a number greater than 10. Which statement about Aida's quotient is always true?