Page 214 - Start Up Mathematics_5

17. Rohit wishes to tile the floor of his study room and drawing room. The study
room is 450 cm long and 200 cm wide and the drawing room is 500 cm long and
420 cm wide. How many tiles will Rohit require to cover both the rooms if the area of
a tile is 300 cm and how much will he have to pay if each tile costs ` 42?
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(a) 1,080 tiles, ` 45,360 (b) 1,000 tiles, ` 42,000

(c) 1,320 tiles, ` 55,440 (d) 1,240 tiles, ` 52,080
18. A cube of length 14 cm is embedded in a cuboid of length 28 cm, breadth 17 cm and
height 14 cm. How much volume is still left to be filled?

(a) 3,920 cm (b) 2,920 cm (c) 1,920 cm (d) 2,820 cm 2
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19. The diameter of a circular table is 12 m. There is a circular metallic ring on it of diameter
7 m. What is the difference in the circumference of the table and the ring?
(a) 13.7 m (b) 12.7 m (c) 16.7 m (d) 15.7 m

20. In a crate of 1,500 mangoes, 8% are rotten and 20% of the remaining mangoes are
raw. How many mangoes left in the crate can be eaten?
(a) 1,000 (b) 1,100 (c) 1,104 (d) 1,110

Passage-Based Questions
David plans a birthday party for his younger brother. He lists out the items he has to buy. He
goes to the shop and buys the necessary items. The shopkeeper gives him the bill mentioning
all the items and their cost.

Read the bill and answer the questions that follow.

Bill No. 318
Raj Gift Shop
Date: 5 July 2016
Cost of each item
S. No. Item Quantity
(in `)

1. Birthday caps 35 5.5

2. Popups 30 15.5

3. Ribbons 8 m 9.75 (per metre)

4. Toys 35 155.00

5. Candles 7 3.00

6. Balloons 55 2.75

7. Invitation cards 30 15.00

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