Page 20 - CT&AI_CLasa_7_Part_1

3. Each arrow has a mathematical operator. • At the second stop, 2 passengers get off
When placed in the centre box, its operator and 4 passengers get in
replaces the letter A in the equation it points • At the third stop, exactly half of the
to. Which arrow satisfies an equation based passengers get off
on this rule?
After this, half of the bus seats are occupied.
5 A 4 = 20 Which of the following expressions represents

the number of passengers on the bus at the
beginning?
7 A 8 = 13 9 A 3 = 6
(a) 5 × 5 + 5

14 A 7 = 2 (b) 6 × 6 – 4

(c) 5 × 5 + 10
(a)
(d) 6 × 6 - 5
(b)
5. The following expression has a whole number
‘n’. If a blank can either take ‘×4’ or ‘–12’, what
(c)
is the least possible value of ‘n’?

Expression: (n ) = 96
(d)
(a) 9
4. A bus has 40 seats, and some seats are
already occupied, with one passenger in each (b) 18
seat.
(c) 4
• At the first stop, 5 passengers get off and 8
passengers get in (d) 72

Answers
1. (c) 2. (d) 3. (d) 4. (c) 5. (a)

18 Computational Thinking-7 (Mathematics)