Question
Priya can solve 30 questions in 1.5 hours. If she decreased
her efficiency by 25%, then how much time would she take to solve the same number of questions?Solution
ATQ,
1.5 hours = 90 minutes
Initial efficiency of Priya = 90 ÷ 30 = 3 minutes/question
New efficiency of Priya = 90 ÷ (30 × 0.75) = 4 minutes/question
So, time required to finish 30 questions = 4 × 30 = 120 minutes
Alternate Solution:
Ratio of new efficiency to old efficiency = 0.75:1 = 3:4
Therefore, ratio of time taken now to time taken initially = 4:3
Required time taken = 90 × (4/3) = 120 minutes
Fill in the blanks by choosing the correct connector from the alternatives given below each sentence.Â
The rent being very high he will not t...
Select the most appropriate option to fill in the blank.
She_______her daughter to school before she goes to work.
Google is wooing some of the world’s hottest start-ups to sell its cloud computing technology. These include ventures that send satellites into th...
From _______ groceries, ordering food, paying rent to _______ a cab; from navigating across unfamiliar areas, whipping up your favorite salad to checki...
I. To everything there is a ________.
II. The first _________ of the show did really well.
III. _________ the soup to taste with salt and pepper.
Choose the word that best fits the blank:
The politician’s speech was filled with ______, making it hard for the audience to understand his t...
Select the most appropriate option to fill in the blank.
A dialogue is a ______ between two or more people.
After months of hard work, the team finally saw their efforts come to fruition when the project was completed and they were able to _______.
Select the most appropriate option to fill in the blank.
It is believed that physical exercise is ______ for creating a balance between the body ...
He was caught cheating on the exam and had to _______.