allery994 × 1006 ൻ്റെ മൂല്യം എന്താണ്?
A999964
B999664
C999644
D996644
Answer & Solution
Correct answer: A. 999964
1. നോട്ടീസ് 994 = 1000 - 6, 1006 = 1000 + 6.
2. ഉപയോഗിക്കുക (a - b)(a + b) = a² - b², അതിനാൽ ഉൽപ്പന്നം 1000² - 6² ആണ്.
3. അത് 1,000,000 - 36 = 999,964 നൽകുന്നു.
_Source: RRB Group D (RRC) PYQ, held 27-10-2013, Q.1._
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