If Kamal gves 20 marbles to Shuvo, then,… | Answer

Subject

পেট্রোবাংলা

Topic

বাখরাবাদ গ্যাস ডিস্ট্রিবিউশন কোম্পানি লিঃ (সহঃ ব্যবস্থাপক - জেনারেল) - ৩১.০৩.২০১৭

If Kamal gves 20 marbles to Shuvo, then, both of them will have equal numbers of marbles in their possessions. If Shovo gives 40 marbles to Kamal then Kamal will have twice the number of marbles that Shuvo will retain. What is the number of marbles that Kamal has?
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ক)

100

খ)

160

গ)

200

ঘ)

None of these

Explanation

কামালের মার্বেল আছে = x টি শুভর মার্বেল আছে = y টি ১ম শর্তমতে বা, x - 20 = y + 20 বা, x - y = 20 + 20 বা, x - y = 40 ......................(1) ২য় শর্তমতে বা, x + 40 =2(y - 40) বা, x + 40 = 2y - 80 বা, 2y - x = 40 + 80 বা, 2y - x = 120 ......................(2) (1) × 2 + (2) ⇒ বা, 2x - 2y + 2y - x = 80 + 120 বা, x = 200 কামালের মার্বেল আছে = 200 টি

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If Kamal gves 20 marbles to Shuvo, then, both of them will have equal numbers of marbles in their possessions. If Shovo gives 40 marbles to Kamal then Kamal will have twice the number of marbles that Shuvo will retain. What is the number of marbles that Kamal has?Reading

If Kamal gves 20 marbles to Shuvo, then, both of them will have equal numbers of marbles in their possessions. If Shovo gives 40 marbles to Kamal then Kamal will have twice the number of marbles that Shuvo will retain. What is the number of marbles that Kamal has?

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If Kamal gves 20 marbles to Shuvo, then, both of them will have equal numbers of marbles in their possessions. If Shovo gives 40 marbles to Kamal then Kamal will have twice the number of marbles that Shuvo will retain. What is the number of marbles that Kamal has?
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