Question
In a class of 30 students, the average age each student
of the class is 21 years. 4 more students join the class such that the average age of the class decreases by 12 months. Find the average age of the 4 students who joined the class.Solution
Initial sum of ages of the students in the class = 21 × 30 = 630 years
New average age of the class = 21 - 1 = 20 years
New sum of ages of the students in the class = 20 × 34 = 680 years
Sum of ages of the new students = 680 - 630 = 50 years
Required average = 50 ÷ 4 = 12.5 years
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In the following question, four words are given, out of which only one word is correctly spelt. Find the correctly spelt word.
Select the INCORRECTLY spelt word.
In the following question, four words are given, out of which only one word is correctly spelt. Find the correctly spelt word.
Directions: In each question below, four words printed in bold type are given. These are numbered (A), (B), (C) and (D). One these words printed in bo...
Select the INCORRECTLY spelt word.
- Choose the misspelled word:
Despite the neccessity of immediate action, the proposal was delayed due to bureaucratic hurdles.
... - In each of the questions below, a sentence is given with four words highlighted in bold in the sentence. Among these bold words one may be wrongly spelt. T...
Select the CORRECTLY spelt word.
1) emmisions
2) harass
3) hereditry
4) legetimate
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