(3) A frog in a well is 10 m below the ground level. It jumps 6 m and then falls back 4 m.
How far is it from the ground level?
(4). A submarine is 78 m below sea level. It rises 36 m and then dives 25 m. How far is it
below sea level?
5)
A helicopter flying at 120m above sea level detects a submarine. If the submarine is
39m below sea level, what is the vertical distance between the helicopter and the
submarine? Above sea level 120m below. 39m
120 m - 39m
(6) The bank account of a company has overdraft facility. Its balance for yesterday was
5600 -$390. The company deposits $600 into the account today and it will withdraw $450
WS tomorrow. Find the balance in the account (a) today, (b) tomorrow.
(7) The following table records the maximum and minimum daily temperatures of a city on
5 consecutive days.
1950
Mon
Wed
Thu
Day
Maximum temp (°C)
Minimum temp (°C)
Tue
6
Fri
10
-2
0
-3
-1
-5
-10
-4
3​