If 10% of A's income = 15% of B's income = 20% of C's income. If the sum of their income is 7800, find the income of B.

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Mathematics
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Professional Development
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25 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1800
2400
3000
3600
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an election, 2 candidates participate in which the winner gets 60% of the total votes, and he wins the election by 2000 votes. Find the total number of votes in the election.
3200
6400
10000
13250
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If 50% of (x-y) =30% of (x+y), what percent of x is y?
33.33%
40%
12.25%
25%
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ram spends 70% of his salary and deposits 15 % of his salary in the bank. If he is left with Rs. 1500, what is his monthly salary?
Rs.9000
Rs.9500
Rs.10000
Rs.10500
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
1200 boys and 800 girls appeared in an examination. If 60% of the boys and 40% of the girls passed the examination, what is the percentage of candidates who failed in the examination?
48 %
52 %
45 %
42 %
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suresh bought a cell phone from a shop. If he sells it at Rs. 8400 to Mahesh and earns a profit of 12%, find the price at which Suresh bought the cell phone.
A) Rs.7100
B) Rs.7250
C) Rs.7350
D) Rs.7500
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A shopkeeper bought a watch for Rs. 1200. At what price should he sell the watch to earn a profit of 25% ?
Rs. 1400
Rs. 1450
Rs. 1500
Rs. 1550
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