Question

I. Fill in the blanks: 1. I am a multiple of 30 and when rounded to nearest 100, I will turn as 400. Who am I? 2. A factor of 50 between 10 and 20. __________ 3. A prime number between 44 and 50. _____________ 4. 27 is a multiple of 9 because 9 _ 9 _ 9 = 27 5. 17 is not a multiple of 4 because it cannot be made by adding groups of ______ together. II. Give a suitable explanation: 24= 6x 4; It means 6 and 4 are factors of 24 or 24 is a multiple of 6 and 4 ; Take a real life example and connect with the above numbers and explain. III. Solve the following: 1. I have 36 apples and 45 mangoes, what are the possible ways I can arrange them equally into different baskets? 2. I want to plant 45 sunflower plants, 81 corn plants and 63 tomato plants in my garden. If I put the same number of plants in each row and each row has only one type of plant, what is the greatest number of plants I can put in one row? In how many rows, can I arrange all the plants? 3. For an Inter Giis Math quiz, 81 students enrolled for the competition. What could be the maximum size of each team with equal number of participants? 4. Find the common factors of the numbers 124 and 132. 5. Find the first 5 common multiples of the numbers 12 and 9. 6. Find the H.C.F of the numbers 78 and 48 by all the methods -prime factorization, common factor method and long division method. 7. Find the L.C.M of the numbers a) 75 and 125 8. Two of the lights at the local stadium are flickering. They both just flickered at the same time. One of the lights flickers every 7 seconds and the other light flickers every 8 seconds. How many seconds until both lights will flicker at the same time again? 9. Camryn practices the trumpet every , 11th day and the flute every 3rd day. Camryn practiced both the trumpet and the flute today. How many days until Camryn practices the trumpet and flute again in the same day? 10. Bus route A arrives the stop at every 15 minutes and Bus route B arrives the stop at every 40 minutes. If both the buses arriving the stop at the same time currently, after how many hours did they come at the same time?

Answer 1

Answer:

Step-by-step explanation:

The statement signifies:-

We have to take a no. which is nearest to 400 and is the multiple of 30 also,

30×15 = 450 ( greater )

30×13 = 390.

So, 390 is the no. which is a multiple of 30 and when rounded off to nearest 100 then will get 400.