Answers

23 = 11 + 12 To make a square, the length of the each size should be the same. 5 5    5  = size 25 5 5 + 5 + 5 + 5 = 20 ======= The length of the rope that Jane must cut to form the square is 20 cm. To solve […]

The answer is page 10 and page 11. ======= 110 = 1*10*11 = 2*55 (X) =5*22 (X) ===== The pages of a book opened at random and When the product of the pages is 110, the pages would be i) page 55 and page 2. As page 5 and page 55 can not be facing pages,

The answer is 11 ===== Age word problems : https://www.onlinemathlearning.com/age-problems.html

3 x 3 x 3 x 3 = 81 The answer is (d) 81

Solution The pattern is as follows: 1,  2,  4,     7,   _____,     16 +1 +2   +3   +4         +5 the missing term is 7 + 4 = 11.

===== Solution Since Alice has as many sisters as bros,  1) 1 girl, 1 boy – Ben의 bro가 없어 안됨 2) 2 girls , 1 boy – Ben의 bro가 없어 안됨 3) 3 girls, 2 boys –  (Ben’s sis: Ben’s bros = 3:1)(X) 4) 4 girls, 3 boys – (Ben’s sis: Ben’s bros = 4:2)(O)

Solution 1 – Unit method Let the number of Edgar’s fidget spinners be 1 unit. Then Edgar  1 unit Dylan  1 unit(U) + 7 Francis  1U+7  1U+7  1U+7 As the total number of spinners are 38, 1U + 1U+7 + 1U+7 + 1U+7 + 1U+7 = 38 5 Unit = 10 1 Unit is 2

Difficult ======= S : no. of the grumdrops of short side in one side, L  : no. of the grumdrops of long side in one side T : total number of grupdrops 1) when S = 2 ->  1 x 3 rectangle : (S-1) x (2S -1) a – a – a  – a a

The weight of the basket when it is empty is 40 grams. ====== The difference between the full basket (80 grams) and the half-full basket (60 grams) is 20 grams (80 – 60 = 20). That means the weight of the half full mango (without basket) is 20 grams Therefore, the weight of only basket

The answer is 5. There are only 3 numbers on the 3 cards. We know 7 and 5 in the first arrangement and a new number (3) in the second arrangement. Since 5 is missing in the second arrangement, the number behind the ‘+’ should be 5.