यदि + का अर्थ ÷, ÷ का अर्थ -, - का अर्थ ×, × का अर्थ + है, तो निम्न व्यंजक का मान बताएं / If + means ÷, ÷ means -, - means ×, and × means +, then find the value of the following expression. 84 + 3 ÷ 4 – 6 × 12 = ? {RRB Group-D – 16/10/2018 (Shift-II)}
✔
Correct Answer:
A
— 16
Explanation: \[
\begin{aligned}=84\div3-4\times6+12\\\\=28-24+12\\\\=4+12\\\\=16\end{aligned}
\]
यदि ‘<‘ का अर्थ ‘-’, ‘>’ का अर्थ ‘+’ और ‘÷’ का अर्थ ‘×’ है तो (15 < 12) ÷ 3 का मान क्या है? / If ‘<’ means ‘-’, ‘>’ means ‘+’, and ‘÷’ means ‘×’, then what is the value of (15 < 12) ÷ 3? {RRB Group-D – 27/09/2018 (Shift-III)}
✔
Correct Answer:
D
— 9
Explanation: \[
\begin{aligned}=(15-12)\times3\\\\=3\times3\\\\=9\end{aligned}
\]
यदि + का मतलब -, - का ×, ÷ का + और × का ÷ है, तो 9 – 4 + 14 × 7 ÷ 6 का मान ज्ञात करें / If + means -, - means ×, ÷ means +, and × means ÷, then find the value of 9 – 4 + 14 × 7 ÷ 6. {RRB Group-D – 10/10/2018 (Shift-I)}
✔
Correct Answer:
B
— 40
Explanation: \[
\begin{aligned}=9\times4-14\div7+6\\\\=36-2+6\\\\=40\end{aligned}
\]
यदि ‘>’ का अर्थ ‘-’, ‘-’ का अर्थ ‘+’ और ‘+’ का अर्थ ‘×’ है तो [(5 + 2) – 3] + 4 का मान क्या ज्ञात करें / If ‘>’ means ‘-’, ‘-’ means ‘+’, and ‘+’ means ‘×’, then find the value of [(5 + 2) – 3] + 4. {RRB Group-D – 03/12/2018 (Shift-III)}
✔
Correct Answer:
C
— 52
Explanation: \[
\begin{aligned}=[(5\times2)+3]\times4\\\\=[10+3]\times4\\\\=52\end{aligned}
\]
प्रतीकों के उपयुक्त सेट का चयन करें / Select an appropriate set of symbols.
21 9 13 7 = 195 {RRB NTPC 02.04.2016 Shift : III}
A
×, -, ÷
B
+, ÷, -
C
+, -, ÷
D
×, +, -
✔
Correct Answer:
D
— ×, +, -
Explanation: \[
\begin{aligned}21\times9+13-7=195\\\\189+13-7=195\\\\202-7=195\\\\195=195\end{aligned}
\]
यदि L का अर्थ +, M का अर्थ -, N का अर्थ × और P का अर्थ ÷ है, तो 28N5L50P5M4 का मान ज्ञात कीजिए / If L means +, M means -, N means ×, and P means ÷, then find the value of 28N5L50P5M4. {RRB Group-D – 29/10/2018 (Shift-III)}
✔
Correct Answer:
B
— 146
Explanation: \[
\begin{aligned}=28\times5+50\div5-4\\\\=28\times5+10-4\\\\=140+6=146\end{aligned}
\]
यदि ‘Q’ का अर्थ ‘+’, ‘J’ का अर्थ ‘×’, ‘T’ का अर्थ ‘-’ और ‘K’ का अर्थ ‘÷’ है तो 18K3Q7J2T8 का मान कितना होगा / If ‘Q’ means ‘+’, ‘J’ means ‘×’, ‘T’ means ‘-’, and ‘K’ means ‘÷’, then what is the value of 18K3Q7J2T8? {RRB Group-D – 17/09/2018 (Shift-II)}
✔
Correct Answer:
D
— 12
Explanation: \[
\begin{aligned}=18\div3+7\times2-8\\\\=6+14-8\\\\=6+6\\\\=12\end{aligned}
\]
यदि ‘<‘ को ‘+’ और (×) को ÷ के रूप में माना जाता है तो ([25 < 15)] × 4) < 1 तो का मान क्या होगा? / If ‘<’ is treated as ‘+’ and (×) as ÷, then what will be the value of ([25 < 15)] × 4) < 1? {RPF SI 16.01.2019 Shift : I}
✔
Correct Answer:
A
— 11
Explanation: \[
\begin{aligned}=([(25+15)]\div4)+1\\\\=(40\div4)+1\\\\=10+1=11\end{aligned}
\]
यदि ‘÷’ ‘गुणा’ को दर्शाता है ‘-’ ‘योग’ को दर्शाता है ‘+’ ‘भाग’ को दर्शाता है और ‘×’ ‘ऋण’ को दर्शाता है तो निम्न में से कौन-सा विकल्प दिए गए समीकरण का मान होगा? / If ‘÷’ represents ‘multiplication’, ‘-’ represents ‘addition’, ‘+’ represents ‘division’, and ‘×’ represents ‘subtraction’, then which of the following options represents the value of the given equation? 19 ÷ 9 × 51 – 171 + 19 {RRB NTPC 22.04.2016 Shift : 2}
✔
Correct Answer:
D
— 129
Explanation: \[
\begin{aligned}19\times9-51+171\div19\\\\=171-51+9\\\\=180-51\\\\=129\end{aligned}
\]
निम्नलिखित समीकरण को सही करने के लिए किन दो चिन्हों को परस्पर बदलना होगा? / Which two signs must be interchanged to make the following equation correct? 63 ÷ 7 + 5 × 3 – 46 = 2 {RRB NTPC 28.04.2016 Shift : 3}
A
÷ and -
B
× and +
C
÷ and ×
D
× and -
✔
Correct Answer:
B
— × and +
Explanation: \[
\begin{aligned}63\div7\times5+3-46=2\\\\9\times5+3-46=2\\\\48-46=2\\\\2=2\end{aligned}
\]
