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Maths-

SAT

Easy

Question

A sports store had 60 backpacks in stock, some with wheels and some without wheels, before a new shipment of backpacks arrived. The number of wheeled backpacks in the new shipment was twice the number of wheeled backpacks already in stock, and the number of backpacks without wheels in the new shipment was five times the number of backpacks without wheels already in stock. After the new shipment arrived, there were 330 backpacks in the store. Before the shipment, there were x wheeled backpacks and y backpacks without wheels. Which of the following equations can be used with x + y = 60 to solve for x and y ?

2x + 5 y = 330
2x+5y=270
5x + 2 y = 270
5x+2y=330

The correct answer is: 2x+5y=270

x is wheeled back packs before shipment
y is non-wheeled backpacks before shipment
After shipment total backpacks were 330 &
before shipment backpacks were 60.
The backpacks in the shipment were 330 – 60 = 270.
The equation will be 2x +5y = 270.

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