The average weight of 3 men A, B and C is 84 | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) $1$. The sum of weights of $A, B, C$ is $84 	imes 3 = 252 \, kg$.$2$. When $D$ joins,the total weight of $A, B, C, D$ is $80 	imes 4 = 320 \, kg

Vedclass · Accepted Answer

$75$

Vedclass · Answer

(C) $1$. The sum of weights of $A, B, C$ is $84 	imes 3 = 252 \, kg$.$2$. When $D$ joins,the total weight of $A, B, C, D$ is $80 	imes 4 = 320 \, kg$.$3$. Weight of $D = 320 - 252 = 68 \, kg$.$4$. Weight of $E = 68 + 3 = 71 \, kg$.$5$. The average weight of $B, C, D, E$ is $79 \, kg$,so the sum of their weights is $79 	imes 4 = 316 \, kg$.$6$. Sum of weights of $B, C = 316 - (D + E) = 316 - (68 + 71) = 316 - 139 = 177 \, kg$.$7$. Since $A + B + C = 252 \, kg$,then $A = 252 - (B + C) = 252 - 177 = 75 \, kg$.

Similar Questions

In the first $30$ overs of a cricket match,the run rate was $5.2 \text{ runs/over}$. What is the required run rate in the remaining $20$ overs to reach the target of $280$ runs?

The average of first three numbers is double of the fourth number. If the average of all the four numbers is $12,$ find the $4^{th}$ number.

In a family,the average age of father and mother is $38 \text{ years}$,whereas the average age of father,mother,and their only daughter is $28 \text{ years}$. Then,the age of the daughter is? (in $\text{years}$)

$30$ pens and $75$ pencils altogether were purchased for $Rs. \, 510$. If the average price of $75$ pencils was $Rs. \, 2$,then what was the average price of a pen? (in $Rs.$)

An aeroplane flies along the four sides of a square field at speeds of $200, 400, 600$ and $800 \, km/hr$. The average speed of the plane in the flight around the field in $km/hr$ is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module