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In school A, Let total number of pencils and pens used be px and qx respectively. According to the question, => px – qx = 40 => 120 – qx = 40 => qx = 80 Ratio = px : qx = 120 : 80 = 3:2 Total number of pencils used = px = 120 Total number of pens used = qx = 80 In school B, Let total number of pencils and pens used be 3x and 2x respectively. According to the question, => 3x – 2x = 90 => x = 90 So, 3x = 270 and 2x = 180 Now, (m2 + 45) = 270 => m2 = 225 => m = 15 Total number of pencils used = 3x = 270 Total number of pens used = 2x = 180 In school C, Let total number of pencils and pens used be gx and hx respectively. According to the question, => gx = 8m – 70 => gx = (8 × 15) – 70 => gx = 50 So, hx = 50 – 20 = 30 Ratio = gx : hx = 50 : 30 = 5:3 Total number of pencils used = gx = 50 Total number of pens used = hx = 30 In school D, Let total number of pencils and pens used be tx and x respectively. According to the question, => tx = 75 So, tx – x = 50 => 75 - x = 50 => x = 25 Ratio = tx : x = 75 : 25 = 3:1 Total number of pencils used = tx = 75 Total number of pens used = x = 25 Total number of children who used both items = 75 + 25 = 100 Girls who used the both the items = 100 – 40 = 60 Girls who didn’t used any of the items = (7/4) × 60 = 105 Number of boys who didn’t use any of the items = 115 – 105 = 10
Phrasal verbs are highlighted in bold in the below-given sentences. Mark the option that best describes its meaning.
The company had to lay o...
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...Set off
A. We need to set off early tomorrow to avoid traffic on the way to the beach.
B. The alarm clock will set off at 6 AM to wak...
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Mark the correct meaning of highlighted phrasal verb.
After a prolonged suffering he passed away .
In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
A science of race, cu...
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Choose the correct word that can replace the given phrase.
a person who is fanatical about cleanliness and tidiness
Find the appropriate Phrasal verb.
Can you please _________ my website just before I publish it?
My friend spent hours to select one dress, but when she was about to pay the bill, she realised that it doesn’t go through her accessories, so she ...