Elimination and Word Problems: Practice, Quiz

Three notebooks and four pens cost ₹

50

; four notebooks and three pens cost ₹

48

. What does one pen cost?

A ₹

14

B ₹

8

C ₹

7

D ₹

6

The sum of two numbers is

60

and their difference is

12

. What is the larger number?

A

36

B

24

C

48

D

30

A two-digit number has digit sum

10

and exceeds the reversed number by

18

. Find it.

A

73

B

64

C

82

D

46

A boat goes at

x

km/h in still water and the stream flows at

y

km/h. What is its speed upstream?

A

x + y

km/h

B

x - y

km/h

C

y - x

km/h

D

\displaystyle \dfrac{x + y}{2}

km/h

Solve

0.2x + 0.3y = 1.3

and

0.4x - 0.1y = 0.5

.

A

x = 2

,

y = 3

B

x = 3

,

y = 2

C

x = 2

,

y = 1

D

x = 1

,

y = 3

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