Question

17. Find the difference between the largest and the smallest numbers that can be made using digits
4 and 9.

.18 In a game show. M
ow, Mandira earned 900 points in round 1 and lost 250 points in round 2 and again lost 340
points in round 3. In round 4 she won 540 points. What is her final score?

19. Simplify.

a. 4-4-{4 + 2 (5-4+2 +6 - 3)}]

b. 9- [4 + {3 - (5 - 8-6)-(-3 + 2)}

20. A 22 storey building is constructed with 4 flats on each floor. If the cost of construction of each floor is
82,60,000, then find the:

a. the total cost of the building

b. the share that each flat owner has to pay

21. A submarine is diving from the surface of the water at the rate of 39 m per minute. What will be the depth of
the submarine after 8 minutes?
17​

Answer 1

17. largest no. = 94

smallest no. =49

difference = 94 -- 49 = 45

18. 900 -- 250 = 650 (round 1 and 2)

650 -- 340 = 310(round 3 and 4)

310+540 = 850 (final round)

19. 4-4-[4+2(5-4+2+6-3)}]

4-4-[4+2*6]

4-4-(8*6)

0-48

-48

b. 9-[4+{3-(5-8-6)-(-3+2}]

9-[4+{3-(-9)-(-1)}]

9-[4+(-11)-(-1)}]

9-[(-7)-(-1)}]

9-(-6)

15

20.a) cost of constructing the building = 8260000*22=181720000/-

b) share that each flat owner has to pay= 8260000/4=2065000/-

21. depth of submarine after 8 minutes = 8*39=312 meter square.

plz mark it the brainliest

Answer 2

Answer:

find the smallest number that can be made using the digits 1 2 4 and 6