Level – 1 Line Graph Practice Quiz – 1 Easy

Percent profit earned by two companies producing Electronic Goods over the years.
Profit Earned = Total Income – Total Investment in the year.

3.1) If the profit earned in 2006 by company B was Rs. 812500. What was the total income of the company in that year?
(a) Rs. 12, 50, 000
(b) Rs. 20, 62, 500
(c ) Rs. 16, 50, 000
(d ) Rs. 18, 25, 000

Sol: 
% profit = [profit earned / total investment ] × 100
65 = [812500/ 1 ] × 100
I = (812500 × 100)/65
  = Rs. 1250000
Total Income = Profit earned  + total investment.
= Rs. (812500 + 1250000)
= Rs. 2062500

3.2) If the amount invested by two companies in 2005 was equal, what was the ratio between the total income in 2005 of the companies A and B respectively?
(a) 31: 33
(b) 33: 31
(c ) 34: 31
(d ) 14: 11

Sol: 
70 = (x/ I)  × 100

  • 70 I = 100x  —–à (1)

 55 = (y/ I)  × 100

  • 55 I = 100y  —–à (2)

From (1) & (2 )

 [70 I /100 ] +I : [ 55 I/ 100] +I

170 I : 155 I  = 34 : 31.

3.3) If the total income invested by two companies in 2009 was Rs. 27 lakhs while the amount invested by company B  was 50% of the amount invested by company A. What was the total profit earned by the two companies together?
(a) Rs. 21.15 lakhs
(b) Rs. 20.70 lakhs
(c ) Rs. 18.70 lakhs
(d ) Rs. 20.15 lakhs

Sol.: 
Investment by company A = [2/3] × 27 = Rs. 18 lakh
Investment by company B =  Rs. 9 lakh.
For company A,
75 = [p /18 ] × 100.
P= (75 × 18)/ 100 = Rs. 13.5 lakh.
For Company B,
80 = [q / 9] × 100
q = 80 × 9/ 100  lakh
 = Rs. 7.2 lakh
Total profit earned = 13.5 + 7.2 = Rs. 20.7 lakh

3.4) If the incomes of company A in 2007 and 2008 were equal and the amount invested in 2007 was Rs. 12 lakhs, what was the amount invested in 2008?
(a) Rs. 10, 87, 500
(b) Rs. 10, 85, 700
(c ) Rs. 12, 45, 000
(d ) Rs. 12, 85, 000

Sol:
For the year 2007,
45 = (p/12 )× 100
=> p = ( 45 × 12 )/100 = Rs. 5.4 lakh.
Total income  = 12 + 5.4 lakh
=Rs. 17.4 lakh
If the amount invested in 2008 be Rs. 1 lakh, then
60 = [17.4 – I / I] × 100

  • 160 I = 1740
  • I = 1740 /160 = 10.875 lakh
  • = Rs. 1087500.

3.5) If the amount of profit earned by company A in 2006 was Rs. 10.15 lakhs. What was the total investment?
(a) Rs. 13. 8 lakhs
(b) Rs. 14.9 lakhs
(c ) Rs. 15.4 lakhs
(d ) Rs. 18.45 lakhs

sol.:
55 = [10.15/ Investment (I) ] ×100
I = 10.15 × 100/ 55
= Rs. 18.45 lakh.

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