Question
The coefficient of 'x 2 ' and 'x' in the
expression (Ax + 5) (3 - 2x) are same, where 'A' is a positive integer. (A + 10) is how much percent of (A + 58) ?Solution
(Ax + 5) (3 - 2x) = 3Ax - 2Ax 2 Â - 10x + 15 = - 2Ax 2 Â + (3A - 10) x + 15
ATQ, - 2A = 3A - 10
Or, 5A = 10
So, 'A' = 2
Required percent = {(2 + 10) ÷ (2 + 58) } x 100 = (12/60) X 100 = 20%
Quantity I: There are two types of animals in a pet shop. Some are puppies and some are kittens. Each kitten takes 8 biscuits and each puppy takes 11 bi...
The following questions each present two quantities, Quantity I and Quantity II. Compare the values of the two quantities and determine their relationsh...
Quantity I: An amount is to be distributed among A, B, and C in the ratio 1:3:2 respectively, but was erroneously distributed in the ratio 2:7:9 due to...
Which of the following pair of symbols will define the relation between Quantity I and Quantity II
Quantity 1: A boat covers 60 km upstream in 6 ...
Aman' and 'Bhuvan' can complete a certain task in 24 days and 40 days, respectively. Both started working together, but 'Bhuvan' ...
Quantity I: The cash price of a notebook is Rs. 100 but is can also be purchased on 11 monthly equal instalments of Rs. 10 each. Find rate of S.I.?
...If (y/5) =Â 11/(z+1).
Value of 'y' is root of p2 - 10p + 25 = 0.
Quantity I: Value of 10z.
Quantity II: 100
...Quantity-I: 'E' can do 40% of work in 32 hours. Find the value of 'Y' if the time taken by him to complete the whole work is 'Y' hours.
Quantit...
Quantity I : The rate at which the train must run to reduce the time to 30 minutes. A train takes 40 minutes for a journey if it runs at 72 km/hr.
...Which of the following pair of symbols will define the relation between Quantity I and Quantity II
Quantity I: The simple interest on a sum of �...
Relevant for Exams:
