Skip to main content

Aptitude Day 82


Ratio and Proportion:

Answer of Day 81:   10, 15 and 35.
  
1. Salaries of A and B are in the ratio 3:4. If the salary of each is increased by 1000, the ratio becomes 13:20. What’s the B’s present salary?
Solution:
                  Let their salaries be 3x and 4x.
                  3x+1000/ 4x+1000 = 13/20
                  60x+20000 = 52x+13000
                  8x = 7000
                  4x = 3500
                  B’s present salary is 4x+1000 = 4500.

2. If 6000 be divided among A, B and C in such a way that B gets 1/2 of A and C gets 1/3 of B, then the share of A is:

Solution:
                Their ratio will be A: 1/2 A: 1/3B
                This becomes, A: 1/2A: 1/6A
                6:3:1.
               Total parts = 10.

               The share of A is 6(6000/10) = 3600.


Comments

Popular posts from this blog

Aptitude Day 59

Answers of Day 58:     1. 1/90.     2. 20 Problems to solve: 1. The product of two numbers is 33 and the sum of their squares is 130. Find their difference. 2. The sum of two numbers is 100 and their difference is 20. Find their product.

Vocabulary Day 55

Dilemma Thesaurus: Noun : problem            double bind, difficulty, crisis, embarrassment, mess, puzzle...  Antonyms :  solution...  Example sentences:                  That's a serious dilemma we should think about that.          He'll never share his dilemma with anyone. 

Aptitude Day 55

Problems On Numbers 1. The difference between the squares of two numbers is 28000 and the sum of their numbers is 400. Find the numbers. Solution:                 Let the 2 numbers be x and y.                 (x 2 -y 2 ) / (x+y) = 28000/400                 (x+y)(x-y) / (x+y) =  70                 x-y = 70 ------ Equation 1                 x+y = 400 ---- Equation 2                 By solving equations 1 and 2 we get,                 x = 235 and y = 165.                 The numbers are 235 and 165. 2. The sum of three consecutive numbers is 315. The middle number is: Solution:                 Let t...