Question

The average temperature for Monday.
Tuesday and Wednesday was 36°C. The average tem-
posure for Tuesday, Wednesday and Thursday was
38°C and that for Thursday was 37°C. What was the
temperature on Monday?​

Answer 1

Answer:

→ 31°C .

Step-by-step explanation:

$\because$ The average temperature for Monday.Tuesday and Wednesday was 36°C.

→[ M + T + W ]/3 = 36° .

→ M + T + W = 36 × 3 .

$\therefore$ M + T + W = 108° . ....... (1) .

And,

$\because$ The average temperature for Tuesday, Wednesday and Thursday was 38°C .

→ [ T + W + TH ]/3 = 38°C .

→ T + W + TH = 38 × 3 .

$\therefore$ T + W + TH = 114° . ........ (2) .

On subtracting equation (2) and (1), we get

→ TH - M = 6° .

{ And, it's given Temp. on TH is 37°C . }

→ 37 - M = 6.

→ M = 37 - 6 .

$\therefore$ Temperature on Monday was 31°C .

Hence, it is solved.

Answer 2

Answer:

31°C .

Step-by-step explanation:

∵ A/Q, The average temperature for Monday, Tuesday and Wednesday was 36°C.

→( Mon + Tue + Wed )/3 = 36° .

→ Mon + Tue + Wed = 36 × 3 .

∴ Mon + Tue + Wed = 108° ...... 1

Now, again A/Q

∵ The average temperature for Tuesday, Wednesday and Thursday was 38°C .

→ ( Tue + Wed + Thus )/3 = 38°C .

→ Tue + Wed + Thus = 38 × 3 .

∴ Tue + Wed + Thus = 114° . .... 2

On subtracting equation (2) and (1), we get

→ Thus - Mon = 6°

→ 37 - M = 6. [ Given : Thus = 37° C ]

→ Mon = 37 - 6 .

Therefore, temperature on Monday was 31°C .