Answer
Let’s label the sides of the square as “a”. Then, the length and width of the top left rectangle are “a” and “b”, respectively. Similarly, the length and width of the bottom right rectangle are “c” and “d”, respectively. Since the perimeter of a rectangle is the sum of its sides, we have: 1) Perimeter […]
19 sweets 6 new sweets + 1 wrapper 2 new sweets + 1 wrapper 1 new sweets Therefore, 28 sweets ========= To solve this problem, we need to think about how many wrappers Kelvin can get for his 19 sweets. a) He can get 19 wrappers from the 19 sweets he bought, and then he
Let’s call the total depth of the drain “d” and the height of each jump “j” and slid “s”. d = 20 cm j = 6 cm s = 4 cm Since it takes the frog one hour to make one jump and slid down, the frog moves up 2 cm ( 6 – 4
1 + 11 + 111 + … + 111…111 ? 1 digit 2 digit 3 digit 50 digit 1’s digit: 1 * 50 = 50 10’s digit : 10 * 49 = 490 50 + 490
2.90 = 1.15 + 1.75 Pen = $1.75 ====== The pen costs $1.75 and the pencil costs $1.15. EXPLANATION: Let x represent the cost of the pencil. Since the pen costs 60 more than the pencil, the cost of the pen is x + 60. We know that the total cost of the pen and
16 = 1 + 2 + 3 + 10 =1 + 2 + 4 + 9 =1 + 2 + 5 + 8 = 1 + 2 + 6 + 7 = 2 + 3 + 4 + 7 = 2 + 3 + 5 + 6 ====== The smallest possible number of different marbles
1 sausage = 1/3 + 1/3 + 1/3 = 1/3 + 2/3 1. Give a 2/3 sausage to 16 people 2. Give two 1/3 sausage (= 2/3) to 8 people ====== Cut each of the 16 sausages once in to two pieces, one which is 1/3 and the other 2/3 of a sausage. Give the
Solution 1 2 people (a, b) = 1 hand shakes (ab) 3 people (a, b, c) = 3 handshake (ab, ac, bc) (= 2 + 1 = 3) 4 people (a, b, c, d) = 6 handshakes (= 3 + 2 + 1 = 6) 10 people (a, b, c, d, e, f, g, h
a b c … e f .. 20m 20m ====== 20 solders (1 2 3 4 …. 19 20) = 20 m x 19 = 380 m 19 solders ( 21 22 23 24 39 ) The answer is 380 m
1, 2, 6, 24, _____, 720. x2 x3 x4 x5 x6 The answer is 120 ======= The pattern is x 1, x 2, x 3, x 4,….. So, missing term = 24 x 5 = 120. https://www.toppr.com/ask/en-sg/question/1-1-2-6-24-720/
