It is given that Roberts father is 5 years older than 3 times Robert's age which means that Roberts Father's age is 5 years more than 3 times the age of Roberts
∴ Roberts Father's age is: 3 times of Robert age + 5 years
<span><span>P=76,378</span><span>N=3,428+B</span><span>P=N+B</span><span>=3,428+B+B</span><span>=3,428+2B</span><span>=76,378</span><span>⟹76,378−3,428=2B</span><span>⟹B=<span><span>76,378−3,428</span>2</span></span></span><span>
Where P is total Profit, N is the profit from nuts and B is the profit from Bolts.
Now you know the profits for Bolts and Nuts.</span>
, so you get