Question

divide 45 into two parts in the ratio 7:8

Answer 1

Answer:

21 and 24

Step-by-step explanation:

7+8 = 15

45/15 = 3

Therefore 3*7 = 21 and 3*8 = 24

Therefore 21 and 24 are two parts in the ratio 7:8 of 45

Answer 2

${ \large{ \red{ \underline{ \sf{✯ \: Let \: \: the \: \: first \: \:part \: \: be \: \: 7x}}}}}$

${ \large{ \blue{ \underline{ \sf{✯ \: \: Then \: \: the \: \: second \: \: part \: \: be \: \: 8x}}}}}$

${ \large{ \green{ \underline{\underline{ \sf{{Now}}}} \colon}}}$

${ \large{ \orange{ \sf{➸ \: 7x + 8x = 45}}}}$

${ \large{ \purple{ \sf{➸ \: \: 15x = 45}}}}$

${ \large{ \pink{ \sf{➸ \: \: x = \cancel\frac{45}{15} = 3 }}}}$

${ \large{ \red{\therefore{ \underline{ \boxed{ \sf{ First \: \: part = 21 \: \:,\: \: Second \: \: part = 24}}} Ans.}}}}$