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A Learning Portal from Recruitment India
A Learning Portal from Recruitment India
A vendor sells 60 percent of apples he had and throws away 15 percent of the remainder. Next day he sells 50 percent of the remainder and throws away the rest. What percent of his apples does the vendor throw?
30
23
17
13
Answer with explanation
Answer: Option BExplanation
Let the number of apples be 100.
On the first day he sells 60% apples ie.,60 apples. Remaining apples =40.
He throws 15% of the remaining i.e., 15% of 40 = 6.Now he has 40 – 6 = 34 apples
The next day he throws 50% of the remaining 34 apples i.e., 17.
Therefore, in all, he throws 6 + 17 =23 apples.
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In an election two candidates contested. A candidate secured 70% of the valid votes and is elected by a majority of 172 votes. Find the total number of valid votes.
570
430
430
480
Answer with explanation
Answer: Option CExplanation
Let the total number of valid votes be ‘x’
70% of x = 70/100 *x = 7x/10
Number of votes secured by the other candidate = x-7x/10 = 3x/10
Given, 7x/10-3x/10 = 172
4x/10 = 172
4x = 1720
x = 1720/4 = 430
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What percentage of numbers from 1 to 70 have 1 or 9 in the unit’s digit?
21
14
20
1
Answer with explanation
Answer: Option CExplanation
Clearly, the numbers which have 1 or 9 in the unit’s digit, have squares that end in the digit 1.
Such numbers from 1 to 70 are 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69.
Number of such number =14
Required percentage = (14/70 x 100)% = 20%.
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