Home›MPPSC Forest›State Forest Service Mains Exam›Section 'B': Forestry and General Science›UNIT-10: Elementary Mathematics and General Mental Ability›Simple formula and their use factors, H.C.F., L.C.M. by factors, fractions, simple equations›The LCM of two numbers is 2079 and their HCF is 27. If the first

The LCM of two numbers is 2079 and their HCF is 27. If the first number is 189, the second number is

20243M#mppsc-forest#pyq#mcq#2024
A.2079÷(27×189)2079 \div (27 \times 189)2079÷(27×189)
B.(2079×189)÷27(2079 \times 189) \div 27(2079×189)÷27
C.(2079×27)÷189(2079 \times 27) \div 189(2079×27)÷189Correct
D.(189×27)÷2079(189 \times 27) \div 2079(189×27)÷2079
Explanation & Solution

Correct Answer: (C) (2079×27)÷189(2079 ×\times× 27) ÷\div÷ 189(2079×27)÷189

By the fundamental property of numbers, Product of Two Numbers = LCM * HCF. Hence, Second Number = (LCM * HCF) / First Number = (2079 * 27) / 189.

हिंदी में प्रश्न एवं आदर्श उत्तर

दो संख्याओं का लघुत्तम समापवर्त्य 2079 है एवं उनका महत्तम समापवर्तक 27 है । यदि पहली संख्या 189 है, तो दूसरी संख्या होगी

A.2079÷(27×189)2079 \div (27 \times 189)2079÷(27×189)
B.(2079×189)÷27(2079 \times 189) \div 27(2079×189)÷27
C.(2079×27)÷189(2079 \times 27) \div 189(2079×27)÷189सही
D.(189×27)÷2079(189 \times 27) \div 2079(189×27)÷2079

सही उत्तर: (C) (2079×27)÷189(2079 ×\times× 27) ÷\div÷ 189(2079×27)÷189

संख्याओं के मूलभूत गुणधर्मानुसार, दो संख्याओं का गुणनफल = LCM * HCF होता है। अतः दूसरी संख्या = (LCM * HCF) / पहली संख्या = (2079 * 27) / 189 होगी।

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