1.

1). 58°C2). 64°C3). 51°C4). 69°C

Answer»

We know that:

$(Average = \frac{{SUM\ of\ ELEMENTS}}{{number\ of\ elements}})$

⇒ Monday + Tuesday + Wednesday + Thursday = 58 × 4 = 232 ________ (1)

⇒ Tuesday + Wednesday + Thursday + Friday = 60 × 4 = 240 ________ (2)

⇒ Monday : Friday = 7 : 8

⇒ Monday = 7/8 × Friday_________(3)

Now, subtracting equation (1) from equation (2), we get

⇒ Friday - Monday = 8

⇒ Friday - 7/8 × Friday = 8(from equation 3)

⇒ Friday = 8 × 8 = 64

∴ Temperature on Friday was 64°C



Discussion

No Comment Found

Related InterviewSolutions