ibps-rrb-os1 2021 · Question 133 of 173

The area of four walls of a room is 128 sq. m. If length and breadth of the room are equal and height of the room is 4 m, then find the area of floor. (in sq. m.)

Data Interpretation

A81
B49
C64Correct
D96
E100

Answer: C. 64

Explanation

Let length, breadth and height of room be l, b and h respectively. ATQ 2(lh + bh) = 128 2lh = 64 (l = h) l × 4 = 32 l = 8 So, area of floor = lb = 64 sq. m.

Source: IBPS RRB PO Mains 2021 Memory Based Paper (Adda247/BankersAdda) · memory-based

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