Question

1. The temperature of a place reses from -3°C to 6°C.
(i) By how many degrees did the temperature rise?
(ii) If in the afternoon the temperature fell by seven degrees from 5°C. What was the
temperature at the end of the afternoon?

2. A grocer earns a profit of Rs.1 by selling one sketch pen and incurs a loss of 40 paise
per eraser while selling erasers of old stock. In a particular week, she earns neither
profit nor loss. If she sold 40 sketch pens, how many erasers did she sell?​

Answer 1

Answer:

1.i) (-3+6) 9°C

ii) (5-7) -2°C