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Playing With Numbers

In question, state whether the statement are true (T) or false (F).

If abc, cab, bca are three digit numbers formed by the
digits a, b, and c then the sum of these numbers is
always divisible by 37.

Playing With Numbers

If AB × B = 9B, then A = _________, B = _________.

Playing With Numbers

When written in usual form 100a + 10c + 9 is equal to________.

Playing With Numbers

The number ab – ba where a and b are digits and a > b is divisible by ________.

Playing With Numbers

If 5 A + 25 is equal to B 2, then the value of A + B is
(a) 15 (b) 10 (c) 8 (d) 7

Playing With Numbers

If 5 × A = CA then the values of A and C are

(a) A = 5, C = 1 (b) A = 4, C = 2
(c) A = 5, C = 2 (d) A = 2, C = 5

Playing With Numbers

The usual form of 100a + b + 10c is
(a) abc (b) cab (c) bac (d) acb

Playing With Numbers

Generalised form of a three-digit number xyz is
(a) x + y + z (b) 100x + 10y + z
(c) 100z + 10y + x (d) 100y + 10x + z

Introduction To Graphs

Ajita starts off from home at 07.00 hours with her father on a scooter
that goes at a uniform speed of 30 km/h and drops her at her school
after half an hour. She stays in the school till 13.30 hours and takes
an auto rickshaw to return home. The rickshaw has a uniform speed
of 10 km/h. Draw the graph for the above situation and also determine
the distance of Ajita’s school from her house.

Introduction To Graphs

Extend the line segment on both sides to meet the coordinate axes.
What are the coordinates of the points where this line meets the
x -axis and the y-axis?