Question

A Choose the correct answer. 1. The twin prime numbers among these sets of numbers are: a. 13 and 17 b. 17 and 19 c. 19 and 23 d. 23 and 29 2. The number that is divisible by 3, 6 and 9 is: a. 843 b. 846 c. 848 d. 849 3. The HCF of 12 and 28 is: a. 2 b. 3 c. 4 d. 7 4. The LCM of 14, 28 and 35 is: a. 120 b. 140 c. 160 d. 180 5. The product of two numbers is 750 and their LCM is 150. Their HCF is: a. 1 b. 3 c. 5 d. 7 B. Find the prime numbers from 101 to 200 using the Sieve of Eratosthenes method. C. Fill up the missing numbers in the factor tree and write down the prime factors of 220. 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 220 2 55 D. Complete the blank: 1. 0 10 20 30 40 50 60 70 80 90 100 Aruna Madhavi Rohini Aruna walks with a stride length of 45 cm, Madhavi with a stride length of 60 cm and Rohini with a stride length of 75 cm. If they start walking from the same point on a circular path, they will meet after a distance of cm.

Answer 1

Answer:

3. Complete the following sentences using an appropriate verb form.

5

?...

i) The boys

when the guests arrived.

a) were playing

b) are playing

c) have played

ii) She was surprised to hear that she

the first prize.

a) had won

b) has won

c) Either could be used here

iii) I

trust strangers.