IBPS RRB Officer Scale-I Prelims practice question
Meena and Manoj can complete a work alone in 4 and 12 days respectively. They begin together, but Meena leaves a few days before completion, and Manoj finishes the remaining work alone. If the total work took 9 days, after how many days did Meena leave?
From a IBPS RRB Officer Scale-I Prelims Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (D) 1 days
Let Meena work for x days. x/4 + (9−x)/12 = 1. Solving gives x = 1 days.
मान लें मीना ने x दिन काम किया। x/4 + (9−x)/12 = 1। हल करने पर x = 1 दिन।
हिंदी में प्रश्न
मीना और मनोज किसी काम को अकेले क्रमशः 4 और 12 दिनों में पूरा कर सकते हैं। दोनों साथ शुरू करते हैं, पर काम पूरा होने से कुछ दिन पहले मीना काम छोड़ देता है और मनोज शेष काम अकेले पूरा करता है। यदि पूरा काम 9 दिनों में पूरा हुआ, तो मीना ने कितने दिनों बाद काम छोड़ा?
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सही उत्तर: (D) 1 दिन
Let Meena work for x days. x/4 + (9−x)/12 = 1. Solving gives x = 1 days.
मान लें मीना ने x दिन काम किया। x/4 + (9−x)/12 = 1। हल करने पर x = 1 दिन।
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