Sandeep can solve 20 questions in 1 hour. If he decreased his efficiency by 20%, then how much time would he take to solve the same number of questions?
1 hour = 60 minutes Initial efficiency of Sandeep = 60 ÷ 20 = 3 minutes/question New efficiency of Sandeep = 60 ÷ (20 x 0.8) = 3.75 minutes/question So, time required to finish 20 questions = 3.75 x 20 = 75 minutes Alternate Solution Ratio of new efficiency to old efficiency = 0.8:1 = 4:5 Therefore, ratio of time taken now to ratio of time taken initially = 5:4 Required time taken = 60 x (5/4) = 75 minutes
In the questions given below, a sentence has been divided into four fragments (A), (B), (C) and (D) and is arranged (not necessarily in the correct ord...
Each question is divided into four parts a,b,c,d. In some questions they are not in the sequence so according to grammar and context re- arrangement is...
Given below are six sentences 4 of which are jumbled. The first and the last sentence are given. Pick the option that gives the logically correct order...
1. Toto was a pretty monkey.
P. And his teeth, which were a pearly white, were very often displayed in a smile that frightened the life out of el...
Given below are four jumbled sentences. Select the option that gives their correct order.
A. We were driving along National Highway 40. B. If we ...
A. The other day we entered the city’s only Jewish cemetery.
B. But then, it should not be a surprise.
C. We were astonished to discover...
A. determined not to let a stray
B. brushed past me, so close
C. I turned and came directly in the path
Select the most appropriate option to substitute the highlighted segment in the given sentence. If there is no need to substitute it, select No improve...
A. i never saw two
B. man working miserably
C. men do more with
D. in my whole life than they did
E. one-and-two pence worth of butter
Choose the appropriate option to arrange the sentences in the correct order to form a meaningful paragraph.
A-Mahatma Gandhi described Subhash ...
