Math, asked by chourasiyaaastha, 2 months ago

Q 36 In a certain month, the total income of Andrew, Bruce and Chioe is $50,000. In that month, Andrew spends 70% of his incaneuse spends 79% of income and Chloe spends 80% of her income. The ratio of the amounts spent by Andrew, Bruce and Chloe an that month:90:64 Find the f

Andrew in the month.

Ops: A. $10,000

B$24,000

C. $16,000

D.$18,000


amitnrw: Please type Question correctly . Spent ratios are of two instead of 3/

Answers

Answered by ishitak1105
42

Answer:

ops: A. $10,000

Step-by-step explanation:

A+B+C= 50,000

35:90:64  -   spent ratio

70% of A= 35k ----------------100% of A=50k

75% of B= 90k ----------------100% of B=120k

80% of C=64k -----------------100% of C=80k

A+B+C= 50,000

50k+120k+80k=50,000

k=200

So, Andrew has 50k = 50*200 = $10,000

Answered by amitnrw
15

Given :  

In a certain month, the total income of Andrew, Bruce and Chloe is $50,000. In that month, Andrew spends 70% of his income ,  Bruce spends 75% of income and Chloe spends 80% of her income. The ratio of the amounts spent by Andrew, Bruce and Chloe in that month: 35 : 90: 64

To Find : Andrew Income

Solution:

Income of  Andrew  = 100A

Income of  Bruce  =   100B

Income of  Chloe  =   100C

Andrew spend  = 70A

Bruce spends  = 75B

Chloe spends  = 80C

70A : 75B : 80C  = 35 : 90: 64

=> 70A/35 = 75B/90  = 80C/64   = N

=> A = N/2   ,   B = 6N/5   ,   C  = 4N/5

=> 100A = 50N  , 100B = 120N  , 100C = 80N

100A + 100B + 100C  = $50,000

=> 50N + 120N + 80N = $50,000

=> 250N = $50,000

=> N = 200

Income of  Andrew =  100A = 50N  = 50 x 200 =  10000  $

Income of  Bruce  =   100B = 120N  = 120 x 200  = 24000  $

Income of  Chloe  =    100C = 80N  = 80 x 200 =   16000  $

Andrew Income = 10000 $

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