Question

Reena is 6 year older than her brother Ajay if the sum of their heads is 28 years what are their present ages​

Answer 1

Step-by-step explanation:

{A +6 } + A = 28

2A = 22

Ajay = 11yrs

reena = 11+6

= 17 yrs

Answer 2

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$\bigstar\sf\underline\blue{\:\:Let \:the \:age \:of\: Reena's \:brother\: =\: x}$

$\longrightarrow\sf{According\: to\: the\: question \:Reena\: is\: 6 \:years\: older \:than\: her\: brother }$

$\bigstar\sf\underline\blue{\:\:So\: Reena's\: age\: =\: x\: + \:6 }$

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$\longrightarrow\sf{Given\: = x + (x + 6) = 28}$

$\longrightarrow\sf{2x + 6 = 28}$

$\longrightarrow\sf{2x = 28 - 6 }$

$\longrightarrow\sf{2x = 22}$

$\longrightarrow\sf{x = \dfrac{\cancel{22}}{\cancel{2}} }$

$\longrightarrow\sf{x = 11}$

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$\longmapsto\sf\pink{Present\: age\: of\: ajay\: = 11 years}$

$\longrightarrow\sf{ Present\: age \:of\: Reena = x +6}$

$\longrightarrow\sf{Present\: age\: of\: Reena = 11 + 6}$

$\longmapsto\sf\pink{Present\: age\: of\: Reena = 17 years}$

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