engineering recuitment NPCIL Plant Operator Mock Test Quantitative Aptitude Algebra Linear Equation in 1 Variable
The number of boys in a bus at the starting point is twice the number of girls. On the way, when 15 boys got down and 10 girls entered the bus, the number of boys and girls became equal. How many boys were there at the start of the journey?
1
45
2
40
3
50
4
55