Question
The average of 15 numbers is 84. The first seven numbers
and the last five numbers have averages of 92.5 and 72.5, respectively. The ninth number exceeds the eighth number by 20%, and the tenth number is reduced by (50/9)% from the ninth number. Determine the value of the ninth number.Solution
Let eighth number is 10x So, ninth number = 1.20 × 10x = 12x Tenth number = 850/9 × 1/100 × 12x = 34x/3 So, 10x + 12x + 34x/3 = 84 × 15 – 7 × 92.5 – 5 × 72.5 = 250 Or, 100x/3 = 250 Or, x = 7.5 So, ninth number = 12 × 7.5 = 90
Consider the given statement(s) and decide which of the given assumption(s) is/are implicit in the statement.
Statement:
The headmistres...
Statement: The Kabini Backwaters, a paradise for elephants in scorching summer, is a let-down for wildlife this year owing to extreme drought.
The given question consists of a statement, followed by two assumptions numbered I and II. You have to decide which of the assumptions is/are implicit ...
A statement is given followed by two courses of actions I and II. You have to assume everything in the statement to be true, then decide which of the su...
Statement: Of all the online mock test prepared by ixambee, ‘SBI PO’ mock test has the largest sale.
Assumption:
1) No other mock t...
Statement: Banning books that can ruffle minorities is the right approach in a democratic country like India.
I. India is still home to a huge ...
A statement is given, followed by two assumptions I and II. You must assume everything in the statement to be true, and on the basis of the information ...
Statement: please consult before making any decision on imports from the company.
Assumption:
1) It is vital to take a right decision.<...
STATEMENTÂ Â :Â Repo Rate increased to decrease liquidity in the market.
ASSUMPTIONS: IÂ The present rates are very low.
    ...
Statement: G > U > H ≤ I = V < S
Conclusions: I. G > S II. U ≥ H
Relevant for Exams:
