The temperature of a city at $12$ 'O clock is $20 ° C$ , every hour it rises by $2 ° C$ , what is the temperature at $5 p m$ ?

$30 ° C$

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

$35 ° C$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

$- 30 ° C$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

$- 35 ° C$

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
$30 ° C$

Find the temperature at $5 p m$
The temperature of a city at $12$ 'O clock $= 20 ° C$
and temperature rise by every hour $= 2 ° C$
The temperature at $5 p m =$ The temperature of a city at $12$ 'O clock $+$ temperature rise by every hour $\times 5$
$= 20 + 2 \times 5 = 20 + 10 = 30 ° C$
The temperature at $5 p m$ $= 30 ° C$
$∴$ The correct option is A.

Suggest Corrections

Similar questions

The temperature of a city at $1$ pm was $15 °$ $C$ . Every hour it decreases by $3 ° C$ . What would be the temperature of the city at $6$ pm.

Q. The temperature at

12

noon was

10^{o}

C above zero. If it decreases at the rate of

2^{o}

C per hour until midnight, at what time would the temperature be

8^{o}

C below zero? What would be the temperature at midpoint?

Q. A certain freezing process requires that room temperature be lowered from

40^{o} C

at the rate of

5^{o} C

every hour. What will be the room temperature

10

hours after the process begins?

The temperature of the city at $10$ am was ${26.5}^{\circ} C$ . It rose by ${4.5}^{\circ} C$ during the next $4$ hours. A spell of rain brought the temperature down by ${5.5}^{\circ} C$ . It rose again by ${2.5}^{\circ} C$ . What was the temperature at the end of the day?

Q. A uniform thermometer scale is at steady state with its 0 cm mark at

20^{o}

C and 100 cm mark at

100^{o}

C. Temperature of the 60 cm mark is:

Join BYJU'S Learning Program

The temperature of a city at 12'O clock is 20°C, every hour it rises by 2°C, what is the temperature at 5pm?

The temperature of a city at $12$ 'O clock is $20 ° C$ , every hour it rises by $2 ° C$ , what is the temperature at $5 p m$ ?