general Maths Puzzle Logical Reasoning Decision Making and Problem Solving

What least number must be added to each of the numbers 5,11,19 and 37, so that they are in proportion?

Read Solution (Total 1)

2 is added to each of each of numbers then 5,11,19,37 are in proportion.
Lets the number is x. so
(5+x):(11+x)::(19+x):(37+x)
185+42x+x^2=209+30x+x^2
12x=24 so x=2.
(5+2):(11+2)::(19+2):(37+2)
7:13::21:39
7*39=13*21
273=273 so
X=2
12 years agoHelpfull: Yes(2) No(0)

general Other Question

Places A and B are 100 Km apart.One car from A and another from B starts simultaneously.If cars travels in same direction at different speed,they meet in 5 hours.If they travels towards each other,they meet in 1 hour.What are the speeds of two cars? If X bought an article for Rs. 374, which includes a discount of 15% on marked price and a sales tax of 10% on the reduced price, then what is the marked price of an article?