compound ratio of 3:8 and 7:5 is 63:x. then find the value of "x"
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Answered by
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compound ratio is the product of two ratios
therefore 3:8 multiplied by 7:5 is 21: 40
63 divide by 21 is 3 so you multiply 40 by 3 to get:
63:120
x=120
Answered by
3
we know, if two ratios a : b and c : d are given then, compound ratio of given two ratios is given by ac : bd .
now come to the question,
we have given compound ratio 63 : x of 3 : 8 and 7 : 5 .
so, 63 : x = 3 × 7 : 8 × 5
or, 63 : x = 21 : 40
or, 63 : x = 63 : 120
compare both sides,
x = 120
hence, value of x = 120
now come to the question,
we have given compound ratio 63 : x of 3 : 8 and 7 : 5 .
so, 63 : x = 3 × 7 : 8 × 5
or, 63 : x = 21 : 40
or, 63 : x = 63 : 120
compare both sides,
x = 120
hence, value of x = 120
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