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Question
Karm can type 10 pages in 5 minutes. Rahim can type 2 pages in 10 minutes Working together, how many pages can they type in 30 minutes?
15
20
25
65
75
ANSWER : 5
Descrption
<p><span style = "box - sizing: border - box; font - size: 18px; color: #212529; font - family: bangla, sans - serif; text - align: justify; background - color: #ffffff;">Karm types 10/5 = 2 pages per minute</span></p> <p><span style = "box - sizing: border - box; font - size: 18px; color: #212529; font - family: bangla, sans - serif; text - align: justify; background - color: #ffffff;">Rahim types 2/10 = 1/5 pages per minute</span></p> <p><span style = "box - sizing: border - box; font - size: 18px; color: #212529; font - family: bangla, sans - serif; text - align: justify; background - color: #ffffff;">Together in 1 minute they type = 2 + 1/5 = 11/5 pages</span></p> <p><span style = "box - sizing: border - box; font - size: 18px; color: #212529; font - family: bangla, sans - serif; text - align: justify; background - color: #ffffff;">Together in 30 minutes they type = 11/5×30 = <strong> 66 pages</strong></span></p>
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