The chairs in a hall were originally arranged in rows of 9 chairs each. Alex bought 6 more chairs and rearranged the chairs into rows of 7 chairs each. This created 12 additional rows. The question asks how many chairs there were in the hall for the concert.
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PSLE Qn1 2011
1. Total Value= Number x Value PSLE 2011/P2 The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert?
2. The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert? Total Value= Number x Value STEP 1
3. The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert? Total Value= Number x Value STEP 2
4. The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert? Total Value= Number x Value STEP 3
5. The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert? Total Value= Number x Value STEP 3
6. Total Chairs After Before The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert? Total Value= Number x Value STEP 4 6
7. Total Chairs After Before The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert? Total Value= Number x Value STEP 5 84 7u 9u 6
8. Total Chairs After Before The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert? Total Value= Number x Value STEP 5 84 7u 9u 6 6 9u − 7u = 2u 84 − 6 = 78
9. Total Chairs After Before The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert? Total Value= Number x Value 2u 78 STEP 5 84 7u 9u 6 6 9u − 7u = 2u 84 − 6 = 78
10. Total Chairs After Before The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert? Total Value= Number x Value 2u 78 1u 78 ÷ 2 = 39 STEP 5 84 7u 9u 6 6 9u − 7u = 2u 84 − 6 = 78
11. Total Chairs After Before The chairs in a hall were arranged in rows of 9 chairs each. For a concert to be held in the hall, Alex bought another 6 chairs and rearranged the chairs into rows of 7 chairs each. After the rearrangement, he found that he had 12 additional rows. How many chairs were there in the hall for the concert? Total Value= Number x Value 2u 78 1u 78 ÷ 2 = 39 STEP 5 84 7u 9u 7u + 84 7 x 39 + 84 = 357 6 6 9u − 7u = 2u 84 − 6 = 78 Ans: 357 chairs