C-12-Q090mediumsingle_mcq

In Example 12, the required number is —

a $43$
b $34$
c $52$
d $25$

ব্যাখ্যা

The conditions of Example 12 yield digits satisfying the simultaneous equations whose solution gives tens digit $4$ and units digit $3$ . Hence the required number is $43$ .

এই অধ্যায়ের আরও প্রশ্ন

C-12-Q091The sum of digits of a two-digit number is and on interchanging the digits the new number exceeds the original
C-12-Q092The units digit of a two-digit number is more than thrice the tens digit, and the interchanged number equals t
C-12-Q093The difference of the digits of a two-digit number is and the sum of the number and its digit-reversal is . Th
C-12-Q094The sum of two numbers is and their difference is . The larger number is —
C-12-Q095The sum of two numbers is and their difference is . The smaller number is —
C-12-Q096In Example 13, the present age of the father is —
C-12-Q097In Example 13, the present age of the son is —
C-12-Q098Let mother's present age be and the sum of her two daughters' ages be . From the condition "mother's age is fo
C-12-Q099" years ago, father's age was times son's age" gives — ( = father's, = son's present age)
C-12-Q100"After years, father's age will be twice son's age" gives —

Simple Simultaneous Equations in Two Variables — সব প্রশ্ন দেখুন (152টি) →