Question
Ratio of male to female population of a town in 2012 was
7:5 and total population in 2012 was 24000. If the male population is ___ and female population is ____ as compared to last year then the total population of the town becomes 25000 in 2013. The values given in which of the following options will fill the blanks in the same order in which it is given to make the above statement true: A. increased by 20%, no change B. increased by 25%, decreased by 25% C. decreased by 10%, increased by 24%Solution
Total male population in 2012 = ({7}/{7 + 5} x 24000 = {7/12} x 24000 = 14000) Total female population in 2012 = 24000 − 14000 = 10000 When male population is increased by 20% and female population is unchanged. New male = 1.20 × 14000 = 16800
New female = 1.00 × 10000 = 10000 Total = 16800 + 10000 = 26800 (≠ 25000) So, A cannot be the answer. When male population is increased by 25% and female population is decreased by 25%. New male = 1.25 × 14000 = 17500
New female = 0.75 × 10000 = 7500 Total = 17500 + 7500 = 25000 So, B can be the answer. When male population is decreased by 10% and female population is increased by 24%. New male = 0.90 × 14000 = 12600
New female = 1.24 × 10000 = 12400 Total = 12600 + 12400 = 25000 So, C can be the answer. Therefore, only B and C can be the answer. Hence, option d.
As part of its platinum jubilee celebrations, the Reserve bank of India have initiated a special programme called “Model Village Programme” in six ...
Choose the option which correctly identifies the tense of the given sentence.
They will reach the station at 5 p.m.
The ministry was considered several proposals (A)/ for the development of small and medium enterprises (B)/during Budget discussions. (C)/ No error (D)
Find out the phrase which can correctly substitute bold part of the sentence. If the sentence is correct as it is, the answer is ‘No correction requi...
Choose the option which correctly identifies the tense of the given sentence.
He had been studying all night before the exam.
The President has to ensure that his (A)/ commercial contracts does not allow even (B)/ a perception that the purity of the game is being compromised.(C...
Choose the option which correctly identifies the tense of the given sentence.
Will she be joining us for dinner tonight?
Identify the correct form of the Tense in the given sentence.
Why didn't you meet me in the office yesterday?
Choose the option which correctly identifies the tense of the given sentence.
Are we going to meet the manager tomorrow?
Choose the option which correctly identifies the tense of the given sentence.
She will be traveling to London this time tomorrow.
